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Finding the Fourth Proportional to 841,116, 1,160,847 and 555,231.36

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Solution

The fourth proportional to 841,116, 1,160,847 and 555,231.36 is: 766,289.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    841,116 : 1,160,847 = 555,231.36 : x
  2. Step 2: Convert to fraction form
    841,116/1,160,847 = 555,231.36/x
  3. Step 3: Cross multiply
    841,116x = 1,160,847 × 555,231.36
  4. Step 4: Simplify right side
    841,116x = 644,538,658,561.92
  5. Step 5: Solve for x
    x = 644,538,658,561.92/841,116
  6. Step 6: Final answer
    x = 766,289.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.