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Finding the Fourth Proportional to 381,349.70, 572,024.55 and 223,885.70

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Solution

The fourth proportional to 381,349.70, 572,024.55 and 223,885.70 is: 335,828.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,349.70 : 572,024.55 = 223,885.70 : x
  2. Step 2: Convert to fraction form
    381,349.70/572,024.55 = 223,885.70/x
  3. Step 3: Cross multiply
    381,349.70x = 572,024.55 × 223,885.70
  4. Step 4: Simplify right side
    381,349.70x = 128,068,116,793.94
  5. Step 5: Solve for x
    x = 128,068,116,793.94/381,349.70
  6. Step 6: Final answer
    x = 335,828.55

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Similar ratio
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1.5x scale

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.