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Finding the Fourth Proportional to 423,680.34, 584,763.73 and 251,693.84

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Solution

The fourth proportional to 423,680.34, 584,763.73 and 251,693.84 is: 347,387.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,680.34 : 584,763.73 = 251,693.84 : x
  2. Step 2: Convert to fraction form
    423,680.34/584,763.73 = 251,693.84/x
  3. Step 3: Cross multiply
    423,680.34x = 584,763.73 × 251,693.84
  4. Step 4: Simplify right side
    423,680.34x = 147,181,428,696.42
  5. Step 5: Solve for x
    x = 147,181,428,696.42/423,680.34
  6. Step 6: Final answer
    x = 347,387.91

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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.