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Finding the Fourth Proportional to 368,414.55, 508,375.89 and 207,266.13

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Solution

The fourth proportional to 368,414.55, 508,375.89 and 207,266.13 is: 286,006.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,414.55 : 508,375.89 = 207,266.13 : x
  2. Step 2: Convert to fraction form
    368,414.55/508,375.89 = 207,266.13/x
  3. Step 3: Cross multiply
    368,414.55x = 508,375.89 × 207,266.13
  4. Step 4: Simplify right side
    368,414.55x = 105,369,103,305.61
  5. Step 5: Solve for x
    x = 105,369,103,305.61/368,414.55
  6. Step 6: Final answer
    x = 286,006.90

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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.