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Finding the Fourth Proportional to 368,385.92, 508,402.08 and 207,231.38

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Solution

The fourth proportional to 368,385.92, 508,402.08 and 207,231.38 is: 285,995.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,385.92 : 508,402.08 = 207,231.38 : x
  2. Step 2: Convert to fraction form
    368,385.92/508,402.08 = 207,231.38/x
  3. Step 3: Cross multiply
    368,385.92x = 508,402.08 × 207,231.38
  4. Step 4: Simplify right side
    368,385.92x = 105,356,864,633.27
  5. Step 5: Solve for x
    x = 105,356,864,633.27/368,385.92
  6. Step 6: Final answer
    x = 285,995.91

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1.5x scale

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.