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Finding the Fourth Proportional to 541,410.70, 812,116.05 and 505,981.30

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Solution

The fourth proportional to 541,410.70, 812,116.05 and 505,981.30 is: 758,971.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,410.70 : 812,116.05 = 505,981.30 : x
  2. Step 2: Convert to fraction form
    541,410.70/812,116.05 = 505,981.30/x
  3. Step 3: Cross multiply
    541,410.70x = 812,116.05 × 505,981.30
  4. Step 4: Simplify right side
    541,410.70x = 410,915,534,729.87
  5. Step 5: Solve for x
    x = 410,915,534,729.87/541,410.70
  6. Step 6: Final answer
    x = 758,971.95

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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.