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Finding the Fourth Proportional to 542,840.10, 814,316.04 and 187,853.56

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Solution

The fourth proportional to 542,840.10, 814,316.04 and 187,853.56 is: 281,799.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,840.10 : 814,316.04 = 187,853.56 : x
  2. Step 2: Convert to fraction form
    542,840.10/814,316.04 = 187,853.56/x
  3. Step 3: Cross multiply
    542,840.10x = 814,316.04 × 187,853.56
  4. Step 4: Simplify right side
    542,840.10x = 152,972,167,079.10
  5. Step 5: Solve for x
    x = 152,972,167,079.10/542,840.10
  6. Step 6: Final answer
    x = 281,799.68

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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.