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Finding the Fourth Proportional to 541,381.20, 812,071.80 and 505,951.80

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Solution

The fourth proportional to 541,381.20, 812,071.80 and 505,951.80 is: 758,927.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,381.20 : 812,071.80 = 505,951.80 : x
  2. Step 2: Convert to fraction form
    541,381.20/812,071.80 = 505,951.80/x
  3. Step 3: Cross multiply
    541,381.20x = 812,071.80 × 505,951.80
  4. Step 4: Simplify right side
    541,381.20x = 410,869,188,939.24
  5. Step 5: Solve for x
    x = 410,869,188,939.24/541,381.20
  6. Step 6: Final answer
    x = 758,927.70

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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.