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Finding the Fourth Proportional to 1,475.44, 2,035.20 and 886.12

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Solution

The fourth proportional to 1,475.44, 2,035.20 and 886.12 is: 1,222.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,475.44 : 2,035.20 = 886.12 : x
  2. Step 2: Convert to fraction form
    1,475.44/2,035.20 = 886.12/x
  3. Step 3: Cross multiply
    1,475.44x = 2,035.20 × 886.12
  4. Step 4: Simplify right side
    1,475.44x = 1,803,431.42
  5. Step 5: Solve for x
    x = 1,803,431.42/1,475.44
  6. Step 6: Final answer
    x = 1,222.30

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1.5x scale

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.