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Finding the Fourth Proportional to 543,617.89, 750,567.98 and 339,760.44

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Solution

The fourth proportional to 543,617.89, 750,567.98 and 339,760.44 is: 469,103.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,617.89 : 750,567.98 = 339,760.44 : x
  2. Step 2: Convert to fraction form
    543,617.89/750,567.98 = 339,760.44/x
  3. Step 3: Cross multiply
    543,617.89x = 750,567.98 × 339,760.44
  4. Step 4: Simplify right side
    543,617.89x = 255,013,307,134.71
  5. Step 5: Solve for x
    x = 255,013,307,134.71/543,617.89
  6. Step 6: Final answer
    x = 469,103.96

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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.