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Finding the Fourth Proportional to 423,488.88, 584,158.10 and 251,293.61

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Solution

The fourth proportional to 423,488.88, 584,158.10 and 251,293.61 is: 346,632.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,488.88 : 584,158.10 = 251,293.61 : x
  2. Step 2: Convert to fraction form
    423,488.88/584,158.10 = 251,293.61/x
  3. Step 3: Cross multiply
    423,488.88x = 584,158.10 × 251,293.61
  4. Step 4: Simplify right side
    423,488.88x = 146,795,197,963.67
  5. Step 5: Solve for x
    x = 146,795,197,963.67/423,488.88
  6. Step 6: Final answer
    x = 346,632.95

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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.