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Finding the Fourth Proportional to 891,726.84, 1,337,634 and 359,175.96

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Solution

The fourth proportional to 891,726.84, 1,337,634 and 359,175.96 is: 538,781.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,726.84 : 1,337,634 = 359,175.96 : x
  2. Step 2: Convert to fraction form
    891,726.84/1,337,634 = 359,175.96/x
  3. Step 3: Cross multiply
    891,726.84x = 1,337,634 × 359,175.96
  4. Step 4: Simplify right side
    891,726.84x = 480,445,976,078.64
  5. Step 5: Solve for x
    x = 480,445,976,078.64/891,726.84
  6. Step 6: Final answer
    x = 538,781.56

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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.