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Finding the Fourth Proportional to 445,793.72, 615,195.32 and 254,811.20

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Solution

The fourth proportional to 445,793.72, 615,195.32 and 254,811.20 is: 351,639.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,793.72 : 615,195.32 = 254,811.20 : x
  2. Step 2: Convert to fraction form
    445,793.72/615,195.32 = 254,811.20/x
  3. Step 3: Cross multiply
    445,793.72x = 615,195.32 × 254,811.20
  4. Step 4: Simplify right side
    445,793.72x = 156,758,653,373.55
  5. Step 5: Solve for x
    x = 156,758,653,373.55/445,793.72
  6. Step 6: Final answer
    x = 351,639.44

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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.