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Finding the Fourth Proportional to 1,452.87, 2,179.29 and 357.25

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Solution

The fourth proportional to 1,452.87, 2,179.29 and 357.25 is: 535.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,452.87 : 2,179.29 = 357.25 : x
  2. Step 2: Convert to fraction form
    1,452.87/2,179.29 = 357.25/x
  3. Step 3: Cross multiply
    1,452.87x = 2,179.29 × 357.25
  4. Step 4: Simplify right side
    1,452.87x = 778,551.35
  5. Step 5: Solve for x
    x = 778,551.35/1,452.87
  6. Step 6: Final answer
    x = 535.87

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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.