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Finding the Fourth Proportional to 445,816.52, 615,226.70 and 254,834.01

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Solution

The fourth proportional to 445,816.52, 615,226.70 and 254,834.01 is: 351,670.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,816.52 : 615,226.70 = 254,834.01 : x
  2. Step 2: Convert to fraction form
    445,816.52/615,226.70 = 254,834.01/x
  3. Step 3: Cross multiply
    445,816.52x = 615,226.70 × 254,834.01
  4. Step 4: Simplify right side
    445,816.52x = 156,780,689,964.25
  5. Step 5: Solve for x
    x = 156,780,689,964.25/445,816.52
  6. Step 6: Final answer
    x = 351,670.88

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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.