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Finding the Fourth Proportional to 526,778.42, 726,956.14 and 285,060.97

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Solution

The fourth proportional to 526,778.42, 726,956.14 and 285,060.97 is: 393,385.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,778.42 : 726,956.14 = 285,060.97 : x
  2. Step 2: Convert to fraction form
    526,778.42/726,956.14 = 285,060.97/x
  3. Step 3: Cross multiply
    526,778.42x = 726,956.14 × 285,060.97
  4. Step 4: Simplify right side
    526,778.42x = 207,226,819,885.81
  5. Step 5: Solve for x
    x = 207,226,819,885.81/526,778.42
  6. Step 6: Final answer
    x = 393,385.17

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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.