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Finding the Fourth Proportional to 368,581.56, 508,658.92 and 207,447.05

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Solution

The fourth proportional to 368,581.56, 508,658.92 and 207,447.05 is: 286,286.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,581.56 : 508,658.92 = 207,447.05 : x
  2. Step 2: Convert to fraction form
    368,581.56/508,658.92 = 207,447.05/x
  3. Step 3: Cross multiply
    368,581.56x = 508,658.92 × 207,447.05
  4. Step 4: Simplify right side
    368,581.56x = 105,519,789,348.27
  5. Step 5: Solve for x
    x = 105,519,789,348.27/368,581.56
  6. Step 6: Final answer
    x = 286,286.13

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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.