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Finding the Fourth Proportional to 541,658.60, 812,487.90 and 537,972.20

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Solution

The fourth proportional to 541,658.60, 812,487.90 and 537,972.20 is: 806,958.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,658.60 : 812,487.90 = 537,972.20 : x
  2. Step 2: Convert to fraction form
    541,658.60/812,487.90 = 537,972.20/x
  3. Step 3: Cross multiply
    541,658.60x = 812,487.90 × 537,972.20
  4. Step 4: Simplify right side
    541,658.60x = 437,095,903,036.38
  5. Step 5: Solve for x
    x = 437,095,903,036.38/541,658.60
  6. Step 6: Final answer
    x = 806,958.30

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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.