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Finding the Fourth Proportional to 508,753.95, 763,147.17 and 255,896.35

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Solution

The fourth proportional to 508,753.95, 763,147.17 and 255,896.35 is: 383,852.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,753.95 : 763,147.17 = 255,896.35 : x
  2. Step 2: Convert to fraction form
    508,753.95/763,147.17 = 255,896.35/x
  3. Step 3: Cross multiply
    508,753.95x = 763,147.17 × 255,896.35
  4. Step 4: Simplify right side
    508,753.95x = 195,286,573,407.96
  5. Step 5: Solve for x
    x = 195,286,573,407.96/508,753.95
  6. Step 6: Final answer
    x = 383,852.70

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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.