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Finding the Fourth Proportional to 906,728.88, 1,360,044.13 and 275,593.49

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Solution

The fourth proportional to 906,728.88, 1,360,044.13 and 275,593.49 is: 413,375.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    906,728.88 : 1,360,044.13 = 275,593.49 : x
  2. Step 2: Convert to fraction form
    906,728.88/1,360,044.13 = 275,593.49/x
  3. Step 3: Cross multiply
    906,728.88x = 1,360,044.13 × 275,593.49
  4. Step 4: Simplify right side
    906,728.88x = 374,819,308,340.71
  5. Step 5: Solve for x
    x = 374,819,308,340.71/906,728.88
  6. Step 6: Final answer
    x = 413,375.28

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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.