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Finding the Fourth Proportional to 418,694.64, 577,786.24 and 237,423.12

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Solution

The fourth proportional to 418,694.64, 577,786.24 and 237,423.12 is: 327,636.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,694.64 : 577,786.24 = 237,423.12 : x
  2. Step 2: Convert to fraction form
    418,694.64/577,786.24 = 237,423.12/x
  3. Step 3: Cross multiply
    418,694.64x = 577,786.24 × 237,423.12
  4. Step 4: Simplify right side
    418,694.64x = 137,179,811,793.87
  5. Step 5: Solve for x
    x = 137,179,811,793.87/418,694.64
  6. Step 6: Final answer
    x = 327,636.89

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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.