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Finding the Fourth Proportional to 616,023.32, 921,786.93 and 363,424.82

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Solution

The fourth proportional to 616,023.32, 921,786.93 and 363,424.82 is: 543,810.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,023.32 : 921,786.93 = 363,424.82 : x
  2. Step 2: Convert to fraction form
    616,023.32/921,786.93 = 363,424.82/x
  3. Step 3: Cross multiply
    616,023.32x = 921,786.93 × 363,424.82
  4. Step 4: Simplify right side
    616,023.32x = 335,000,247,296.48
  5. Step 5: Solve for x
    x = 335,000,247,296.48/616,023.32
  6. Step 6: Final answer
    x = 543,810.98

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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.