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Finding the Fourth Proportional to 906,728.13, 1,360,043 and 275,592.74

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Solution

The fourth proportional to 906,728.13, 1,360,043 and 275,592.74 is: 413,374.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    906,728.13 : 1,360,043 = 275,592.74 : x
  2. Step 2: Convert to fraction form
    906,728.13/1,360,043 = 275,592.74/x
  3. Step 3: Cross multiply
    906,728.13x = 1,360,043 × 275,592.74
  4. Step 4: Simplify right side
    906,728.13x = 374,817,970,087.61
  5. Step 5: Solve for x
    x = 374,817,970,087.61/906,728.13
  6. Step 6: Final answer
    x = 413,374.15

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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.