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Finding the Fourth Proportional to 542,515.80, 813,773.70 and 514,867.80

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Solution

The fourth proportional to 542,515.80, 813,773.70 and 514,867.80 is: 772,301.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,515.80 : 813,773.70 = 514,867.80 : x
  2. Step 2: Convert to fraction form
    542,515.80/813,773.70 = 514,867.80/x
  3. Step 3: Cross multiply
    542,515.80x = 813,773.70 × 514,867.80
  4. Step 4: Simplify right side
    542,515.80x = 418,985,874,616.86
  5. Step 5: Solve for x
    x = 418,985,874,616.86/542,515.80
  6. Step 6: Final answer
    x = 772,301.70

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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.