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Finding the Fourth Proportional to 1,475.85, 2,036.90 and 886.41

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Solution

The fourth proportional to 1,475.85, 2,036.90 and 886.41 is: 1,223.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,475.85 : 2,036.90 = 886.41 : x
  2. Step 2: Convert to fraction form
    1,475.85/2,036.90 = 886.41/x
  3. Step 3: Cross multiply
    1,475.85x = 2,036.90 × 886.41
  4. Step 4: Simplify right side
    1,475.85x = 1,805,524.10
  5. Step 5: Solve for x
    x = 1,805,524.10/1,475.85
  6. Step 6: Final answer
    x = 1,223.38

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.