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Finding the Fourth Proportional to 619,696.46, 929,807.13 and 338,885.66

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Solution

The fourth proportional to 619,696.46, 929,807.13 and 338,885.66 is: 508,472.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,696.46 : 929,807.13 = 338,885.66 : x
  2. Step 2: Convert to fraction form
    619,696.46/929,807.13 = 338,885.66/x
  3. Step 3: Cross multiply
    619,696.46x = 929,807.13 × 338,885.66
  4. Step 4: Simplify right side
    619,696.46x = 315,098,298,273.72
  5. Step 5: Solve for x
    x = 315,098,298,273.72/619,696.46
  6. Step 6: Final answer
    x = 508,472.00

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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.