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Finding the Fourth Proportional to 361,600.05, 542,490.40 and 255,191.70

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Solution

The fourth proportional to 361,600.05, 542,490.40 and 255,191.70 is: 382,851.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,600.05 : 542,490.40 = 255,191.70 : x
  2. Step 2: Convert to fraction form
    361,600.05/542,490.40 = 255,191.70/x
  3. Step 3: Cross multiply
    361,600.05x = 542,490.40 × 255,191.70
  4. Step 4: Simplify right side
    361,600.05x = 138,439,045,276.05
  5. Step 5: Solve for x
    x = 138,439,045,276.05/361,600.05
  6. Step 6: Final answer
    x = 382,851.29

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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.