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Finding the Fourth Proportional to 385,614.56, 532,153.56 and 222,180.92

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Solution

The fourth proportional to 385,614.56, 532,153.56 and 222,180.92 is: 306,612.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,614.56 : 532,153.56 = 222,180.92 : x
  2. Step 2: Convert to fraction form
    385,614.56/532,153.56 = 222,180.92/x
  3. Step 3: Cross multiply
    385,614.56x = 532,153.56 × 222,180.92
  4. Step 4: Simplify right side
    385,614.56x = 118,234,367,542.08
  5. Step 5: Solve for x
    x = 118,234,367,542.08/385,614.56
  6. Step 6: Final answer
    x = 306,612.82

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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.