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Finding the Fourth Proportional to 423,387.43, 584,008.88 and 251,183.47

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Solution

The fourth proportional to 423,387.43, 584,008.88 and 251,183.47 is: 346,475.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,387.43 : 584,008.88 = 251,183.47 : x
  2. Step 2: Convert to fraction form
    423,387.43/584,008.88 = 251,183.47/x
  3. Step 3: Cross multiply
    423,387.43x = 584,008.88 × 251,183.47
  4. Step 4: Simplify right side
    423,387.43x = 146,693,376,989.21
  5. Step 5: Solve for x
    x = 146,693,376,989.21/423,387.43
  6. Step 6: Final answer
    x = 346,475.51

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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.