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Finding the Fourth Proportional to 704,186.92, 971,771.34 and 381,904.12

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Solution

The fourth proportional to 704,186.92, 971,771.34 and 381,904.12 is: 527,024.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,186.92 : 971,771.34 = 381,904.12 : x
  2. Step 2: Convert to fraction form
    704,186.92/971,771.34 = 381,904.12/x
  3. Step 3: Cross multiply
    704,186.92x = 971,771.34 × 381,904.12
  4. Step 4: Simplify right side
    704,186.92x = 371,123,478,443.92
  5. Step 5: Solve for x
    x = 371,123,478,443.92/704,186.92
  6. Step 6: Final answer
    x = 527,024.10

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Double scale
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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.