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Finding the Fourth Proportional to 515,473.11, 772,203.90 and 337,440.38

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Solution

The fourth proportional to 515,473.11, 772,203.90 and 337,440.38 is: 505,502.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,473.11 : 772,203.90 = 337,440.38 : x
  2. Step 2: Convert to fraction form
    515,473.11/772,203.90 = 337,440.38/x
  3. Step 3: Cross multiply
    515,473.11x = 772,203.90 × 337,440.38
  4. Step 4: Simplify right side
    515,473.11x = 260,572,773,592.46
  5. Step 5: Solve for x
    x = 260,572,773,592.46/515,473.11
  6. Step 6: Final answer
    x = 505,502.17

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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.