Home / 772,903,006.20-1,159,354,509.30-619,847,998.20

Finding the Fourth Proportional to 772,903,006.20, 1,159,354,509.30 and 619,847,998.20

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Solution

The fourth proportional to 772,903,006.20, 1,159,354,509.30 and 619,847,998.20 is: 929,771,997.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,903,006.20 : 1,159,354,509.30 = 619,847,998.20 : x
  2. Step 2: Convert to fraction form
    772,903,006.20/1,159,354,509.30 = 619,847,998.20/x
  3. Step 3: Cross multiply
    772,903,006.20x = 1,159,354,509.30 × 619,847,998.20
  4. Step 4: Simplify right side
    772,903,006.20x = 718,623,571,793,748,352
  5. Step 5: Solve for x
    x = 718,623,571,793,748,352/772,903,006.20
  6. Step 6: Final answer
    x = 929,771,997.30

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Half scale
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Double scale
Find fourth proportional to 772,903,007.20, 1,159,354,510.80 and 619,847,999.20
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.