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Finding the Fourth Proportional to 508,732.64, 763,115.22 and 255,875.12

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Solution

The fourth proportional to 508,732.64, 763,115.22 and 255,875.12 is: 383,820.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,732.64 : 763,115.22 = 255,875.12 : x
  2. Step 2: Convert to fraction form
    508,732.64/763,115.22 = 255,875.12/x
  3. Step 3: Cross multiply
    508,732.64x = 763,115.22 × 255,875.12
  4. Step 4: Simplify right side
    508,732.64x = 195,262,198,491.33
  5. Step 5: Solve for x
    x = 195,262,198,491.33/508,732.64
  6. Step 6: Final answer
    x = 383,820.86

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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.