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Finding the Fourth Proportional to 542,562.80, 813,844.20 and 514,914.80

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Solution

The fourth proportional to 542,562.80, 813,844.20 and 514,914.80 is: 772,372.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,562.80 : 813,844.20 = 514,914.80 : x
  2. Step 2: Convert to fraction form
    542,562.80/813,844.20 = 514,914.80/x
  3. Step 3: Cross multiply
    542,562.80x = 813,844.20 × 514,914.80
  4. Step 4: Simplify right side
    542,562.80x = 419,060,423,474.16
  5. Step 5: Solve for x
    x = 419,060,423,474.16/542,562.80
  6. Step 6: Final answer
    x = 772,372.20

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Double scale
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Similar ratio
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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.