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Finding the Fourth Proportional to 423,507.33, 635,508.86 and 157,451.49

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Solution

The fourth proportional to 423,507.33, 635,508.86 and 157,451.49 is: 236,269.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,507.33 : 635,508.86 = 157,451.49 : x
  2. Step 2: Convert to fraction form
    423,507.33/635,508.86 = 157,451.49/x
  3. Step 3: Cross multiply
    423,507.33x = 635,508.86 × 157,451.49
  4. Step 4: Simplify right side
    423,507.33x = 100,061,816,915.20
  5. Step 5: Solve for x
    x = 100,061,816,915.20/423,507.33
  6. Step 6: Final answer
    x = 236,269.39

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1.5x scale

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.