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Finding the Fourth Proportional to 656,851.80, 984,111.30 and 614,861.40

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Solution

The fourth proportional to 656,851.80, 984,111.30 and 614,861.40 is: 921,200.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,851.80 : 984,111.30 = 614,861.40 : x
  2. Step 2: Convert to fraction form
    656,851.80/984,111.30 = 614,861.40/x
  3. Step 3: Cross multiply
    656,851.80x = 984,111.30 × 614,861.40
  4. Step 4: Simplify right side
    656,851.80x = 605,092,051,673.82
  5. Step 5: Solve for x
    x = 605,092,051,673.82/656,851.80
  6. Step 6: Final answer
    x = 921,200.26

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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.