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Finding the Fourth Proportional to 656,057.52, 905,378.04 and 632,262.96

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Solution

The fourth proportional to 656,057.52, 905,378.04 and 632,262.96 is: 872,540.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,057.52 : 905,378.04 = 632,262.96 : x
  2. Step 2: Convert to fraction form
    656,057.52/905,378.04 = 632,262.96/x
  3. Step 3: Cross multiply
    656,057.52x = 905,378.04 × 632,262.96
  4. Step 4: Simplify right side
    656,057.52x = 572,436,999,489.40
  5. Step 5: Solve for x
    x = 572,436,999,489.40/656,057.52
  6. Step 6: Final answer
    x = 872,540.87

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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.