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Finding the Fourth Proportional to 423,349.61, 635,202.14 and 263,559.29

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Solution

The fourth proportional to 423,349.61, 635,202.14 and 263,559.29 is: 395,449.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,349.61 : 635,202.14 = 263,559.29 : x
  2. Step 2: Convert to fraction form
    423,349.61/635,202.14 = 263,559.29/x
  3. Step 3: Cross multiply
    423,349.61x = 635,202.14 × 263,559.29
  4. Step 4: Simplify right side
    423,349.61x = 167,413,420,531.07
  5. Step 5: Solve for x
    x = 167,413,420,531.07/423,349.61
  6. Step 6: Final answer
    x = 395,449.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.