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Finding the Fourth Proportional to 542,130.11, 813,939.96 and 276,069.41

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Solution

The fourth proportional to 542,130.11, 813,939.96 and 276,069.41 is: 414,483.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,130.11 : 813,939.96 = 276,069.41 : x
  2. Step 2: Convert to fraction form
    542,130.11/813,939.96 = 276,069.41/x
  3. Step 3: Cross multiply
    542,130.11x = 813,939.96 × 276,069.41
  4. Step 4: Simplify right side
    542,130.11x = 224,703,924,532.62
  5. Step 5: Solve for x
    x = 224,703,924,532.62/542,130.11
  6. Step 6: Final answer
    x = 414,483.39

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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.