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Finding the Fourth Proportional to 543,863.60, 815,471.40 and 333,652.40

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Solution

The fourth proportional to 543,863.60, 815,471.40 and 333,652.40 is: 500,279.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,863.60 : 815,471.40 = 333,652.40 : x
  2. Step 2: Convert to fraction form
    543,863.60/815,471.40 = 333,652.40/x
  3. Step 3: Cross multiply
    543,863.60x = 815,471.40 × 333,652.40
  4. Step 4: Simplify right side
    543,863.60x = 272,083,989,741.36
  5. Step 5: Solve for x
    x = 272,083,989,741.36/543,863.60
  6. Step 6: Final answer
    x = 500,279.83

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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.