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Finding the Fourth Proportional to 418,785.50, 577,924.26 and 237,439.46

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Solution

The fourth proportional to 418,785.50, 577,924.26 and 237,439.46 is: 327,666.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,785.50 : 577,924.26 = 237,439.46 : x
  2. Step 2: Convert to fraction form
    418,785.50/577,924.26 = 237,439.46/x
  3. Step 3: Cross multiply
    418,785.50x = 577,924.26 × 237,439.46
  4. Step 4: Simplify right side
    418,785.50x = 137,222,024,215.30
  5. Step 5: Solve for x
    x = 137,222,024,215.30/418,785.50
  6. Step 6: Final answer
    x = 327,666.61

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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.