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Finding the Fourth Proportional to 515,798.62, 772,691.45 and 337,765.89

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Solution

The fourth proportional to 515,798.62, 772,691.45 and 337,765.89 is: 505,989.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,798.62 : 772,691.45 = 337,765.89 : x
  2. Step 2: Convert to fraction form
    515,798.62/772,691.45 = 337,765.89/x
  3. Step 3: Cross multiply
    515,798.62x = 772,691.45 × 337,765.89
  4. Step 4: Simplify right side
    515,798.62x = 260,988,812,980.36
  5. Step 5: Solve for x
    x = 260,988,812,980.36/515,798.62
  6. Step 6: Final answer
    x = 505,989.74

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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.