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Finding the Fourth Proportional to 539,615.76, 744,650.19 and 297,893.13

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Solution

The fourth proportional to 539,615.76, 744,650.19 and 297,893.13 is: 411,081.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,615.76 : 744,650.19 = 297,893.13 : x
  2. Step 2: Convert to fraction form
    539,615.76/744,650.19 = 297,893.13/x
  3. Step 3: Cross multiply
    539,615.76x = 744,650.19 × 297,893.13
  4. Step 4: Simplify right side
    539,615.76x = 221,826,175,854.20
  5. Step 5: Solve for x
    x = 221,826,175,854.20/539,615.76
  6. Step 6: Final answer
    x = 411,081.72

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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.