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Finding the Fourth Proportional to 381,784.72, 527,126.52 and 238,609.12

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Solution

The fourth proportional to 381,784.72, 527,126.52 and 238,609.12 is: 329,445.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,784.72 : 527,126.52 = 238,609.12 : x
  2. Step 2: Convert to fraction form
    381,784.72/527,126.52 = 238,609.12/x
  3. Step 3: Cross multiply
    381,784.72x = 527,126.52 × 238,609.12
  4. Step 4: Simplify right side
    381,784.72x = 125,777,195,065.86
  5. Step 5: Solve for x
    x = 125,777,195,065.86/381,784.72
  6. Step 6: Final answer
    x = 329,445.34

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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.