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Finding the Fourth Proportional to 541,381.70, 812,072.55 and 505,952.30

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Solution

The fourth proportional to 541,381.70, 812,072.55 and 505,952.30 is: 758,928.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,381.70 : 812,072.55 = 505,952.30 : x
  2. Step 2: Convert to fraction form
    541,381.70/812,072.55 = 505,952.30/x
  3. Step 3: Cross multiply
    541,381.70x = 812,072.55 × 505,952.30
  4. Step 4: Simplify right side
    541,381.70x = 410,869,974,439.37
  5. Step 5: Solve for x
    x = 410,869,974,439.37/541,381.70
  6. Step 6: Final answer
    x = 758,928.45

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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.