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Finding the Fourth Proportional to 616,022.26, 921,785.33 and 363,423.76

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Solution

The fourth proportional to 616,022.26, 921,785.33 and 363,423.76 is: 543,809.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,022.26 : 921,785.33 = 363,423.76 : x
  2. Step 2: Convert to fraction form
    616,022.26/921,785.33 = 363,423.76/x
  3. Step 3: Cross multiply
    616,022.26x = 921,785.33 × 363,423.76
  4. Step 4: Simplify right side
    616,022.26x = 334,998,689,145.54
  5. Step 5: Solve for x
    x = 334,998,689,145.54/616,022.26
  6. Step 6: Final answer
    x = 543,809.39

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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.