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Finding the Fourth Proportional to 467,856.70, 701,785.05 and 255,280.30

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Solution

The fourth proportional to 467,856.70, 701,785.05 and 255,280.30 is: 382,920.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    467,856.70 : 701,785.05 = 255,280.30 : x
  2. Step 2: Convert to fraction form
    467,856.70/701,785.05 = 255,280.30/x
  3. Step 3: Cross multiply
    467,856.70x = 701,785.05 × 255,280.30
  4. Step 4: Simplify right side
    467,856.70x = 179,151,898,099.52
  5. Step 5: Solve for x
    x = 179,151,898,099.52/467,856.70
  6. Step 6: Final answer
    x = 382,920.45

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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.