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Finding the Fourth Proportional to 515,807.36, 711,631.68 and 337,063.04

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Solution

The fourth proportional to 515,807.36, 711,631.68 and 337,063.04 is: 465,027.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,807.36 : 711,631.68 = 337,063.04 : x
  2. Step 2: Convert to fraction form
    515,807.36/711,631.68 = 337,063.04/x
  3. Step 3: Cross multiply
    515,807.36x = 711,631.68 × 337,063.04
  4. Step 4: Simplify right side
    515,807.36x = 239,864,737,421.11
  5. Step 5: Solve for x
    x = 239,864,737,421.11/515,807.36
  6. Step 6: Final answer
    x = 465,027.75

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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.