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Finding the Fourth Proportional to 508,756.45, 763,150.92 and 255,898.86

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Solution

The fourth proportional to 508,756.45, 763,150.92 and 255,898.86 is: 383,856.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,756.45 : 763,150.92 = 255,898.86 : x
  2. Step 2: Convert to fraction form
    508,756.45/763,150.92 = 255,898.86/x
  3. Step 3: Cross multiply
    508,756.45x = 763,150.92 × 255,898.86
  4. Step 4: Simplify right side
    508,756.45x = 195,289,450,435.95
  5. Step 5: Solve for x
    x = 195,289,450,435.95/508,756.45
  6. Step 6: Final answer
    x = 383,856.46

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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.