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Finding the Fourth Proportional to 622,444.80, 932,170.41 and 355,395.90

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Solution

The fourth proportional to 622,444.80, 932,170.41 and 355,395.90 is: 532,239.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,444.80 : 932,170.41 = 355,395.90 : x
  2. Step 2: Convert to fraction form
    622,444.80/932,170.41 = 355,395.90/x
  3. Step 3: Cross multiply
    622,444.80x = 932,170.41 × 355,395.90
  4. Step 4: Simplify right side
    622,444.80x = 331,289,541,815.32
  5. Step 5: Solve for x
    x = 331,289,541,815.32/622,444.80
  6. Step 6: Final answer
    x = 532,239.23

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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.