Home / 698,239.40-1,047,359.10-651,000.20

Finding the Fourth Proportional to 698,239.40, 1,047,359.10 and 651,000.20

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Solution

The fourth proportional to 698,239.40, 1,047,359.10 and 651,000.20 is: 976,500.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,239.40 : 1,047,359.10 = 651,000.20 : x
  2. Step 2: Convert to fraction form
    698,239.40/1,047,359.10 = 651,000.20/x
  3. Step 3: Cross multiply
    698,239.40x = 1,047,359.10 × 651,000.20
  4. Step 4: Simplify right side
    698,239.40x = 681,830,983,571.82
  5. Step 5: Solve for x
    x = 681,830,983,571.82/698,239.40
  6. Step 6: Final answer
    x = 976,500.30

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Half scale
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Double scale
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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.