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Finding the Fourth Proportional to 516,898.96, 775,246.24 and 491,265.61

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Solution

The fourth proportional to 516,898.96, 775,246.24 and 491,265.61 is: 736,801.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,898.96 : 775,246.24 = 491,265.61 : x
  2. Step 2: Convert to fraction form
    516,898.96/775,246.24 = 491,265.61/x
  3. Step 3: Cross multiply
    516,898.96x = 775,246.24 × 491,265.61
  4. Step 4: Simplify right side
    516,898.96x = 380,851,815,669.77
  5. Step 5: Solve for x
    x = 380,851,815,669.77/516,898.96
  6. Step 6: Final answer
    x = 736,801.28

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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.