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Finding the Fourth Proportional to 417,389.58, 625,961.25 and 177,503.03

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Solution

The fourth proportional to 417,389.58, 625,961.25 and 177,503.03 is: 266,202.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,389.58 : 625,961.25 = 177,503.03 : x
  2. Step 2: Convert to fraction form
    417,389.58/625,961.25 = 177,503.03/x
  3. Step 3: Cross multiply
    417,389.58x = 625,961.25 × 177,503.03
  4. Step 4: Simplify right side
    417,389.58x = 111,110,015,407.78
  5. Step 5: Solve for x
    x = 111,110,015,407.78/417,389.58
  6. Step 6: Final answer
    x = 266,202.18

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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.