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Finding the Fourth Proportional to 1,049.16, 1,574.12 and 400.08

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Solution

The fourth proportional to 1,049.16, 1,574.12 and 400.08 is: 600.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,049.16 : 1,574.12 = 400.08 : x
  2. Step 2: Convert to fraction form
    1,049.16/1,574.12 = 400.08/x
  3. Step 3: Cross multiply
    1,049.16x = 1,574.12 × 400.08
  4. Step 4: Simplify right side
    1,049.16x = 629,773.93
  5. Step 5: Solve for x
    x = 629,773.93/1,049.16
  6. Step 6: Final answer
    x = 600.26

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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.