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Finding the Fourth Proportional to 542,624.40, 812,381.40 and 527,072.40

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Solution

The fourth proportional to 542,624.40, 812,381.40 and 527,072.40 is: 789,097.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,624.40 : 812,381.40 = 527,072.40 : x
  2. Step 2: Convert to fraction form
    542,624.40/812,381.40 = 527,072.40/x
  3. Step 3: Cross multiply
    542,624.40x = 812,381.40 × 527,072.40
  4. Step 4: Simplify right side
    542,624.40x = 428,183,814,213.36
  5. Step 5: Solve for x
    x = 428,183,814,213.36/542,624.40
  6. Step 6: Final answer
    x = 789,097.97

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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.