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Finding the Fourth Proportional to 292,726.92, 438,740.82 and 150,640.32

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Solution

The fourth proportional to 292,726.92, 438,740.82 and 150,640.32 is: 225,780.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,726.92 : 438,740.82 = 150,640.32 : x
  2. Step 2: Convert to fraction form
    292,726.92/438,740.82 = 150,640.32/x
  3. Step 3: Cross multiply
    292,726.92x = 438,740.82 × 150,640.32
  4. Step 4: Simplify right side
    292,726.92x = 66,092,057,521.86
  5. Step 5: Solve for x
    x = 66,092,057,521.86/292,726.92
  6. Step 6: Final answer
    x = 225,780.59

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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.