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Finding the Fourth Proportional to 1,475.67, 2,213.51 and 501.75

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Solution

The fourth proportional to 1,475.67, 2,213.51 and 501.75 is: 752.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,475.67 : 2,213.51 = 501.75 : x
  2. Step 2: Convert to fraction form
    1,475.67/2,213.51 = 501.75/x
  3. Step 3: Cross multiply
    1,475.67x = 2,213.51 × 501.75
  4. Step 4: Simplify right side
    1,475.67x = 1,110,626.13
  5. Step 5: Solve for x
    x = 1,110,626.13/1,475.67
  6. Step 6: Final answer
    x = 752.63

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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.