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Finding the Fourth Proportional to 2,400.87, 3,598.48 and 919.11

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Solution

The fourth proportional to 2,400.87, 3,598.48 and 919.11 is: 1,377.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,400.87 : 3,598.48 = 919.11 : x
  2. Step 2: Convert to fraction form
    2,400.87/3,598.48 = 919.11/x
  3. Step 3: Cross multiply
    2,400.87x = 3,598.48 × 919.11
  4. Step 4: Simplify right side
    2,400.87x = 3,307,398.95
  5. Step 5: Solve for x
    x = 3,307,398.95/2,400.87
  6. Step 6: Final answer
    x = 1,377.58

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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.