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Finding the Fourth Proportional to 423,902.32, 635,951.96 and 124,370.80

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Solution

The fourth proportional to 423,902.32, 635,951.96 and 124,370.80 is: 186,585.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,902.32 : 635,951.96 = 124,370.80 : x
  2. Step 2: Convert to fraction form
    423,902.32/635,951.96 = 124,370.80/x
  3. Step 3: Cross multiply
    423,902.32x = 635,951.96 × 124,370.80
  4. Step 4: Simplify right side
    423,902.32x = 79,093,854,026.77
  5. Step 5: Solve for x
    x = 79,093,854,026.77/423,902.32
  6. Step 6: Final answer
    x = 186,585.09

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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.