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Finding the Fourth Proportional to 1,023.33, 1,535.15 and 365.16

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Solution

The fourth proportional to 1,023.33, 1,535.15 and 365.16 is: 547.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,023.33 : 1,535.15 = 365.16 : x
  2. Step 2: Convert to fraction form
    1,023.33/1,535.15 = 365.16/x
  3. Step 3: Cross multiply
    1,023.33x = 1,535.15 × 365.16
  4. Step 4: Simplify right side
    1,023.33x = 560,567.70
  5. Step 5: Solve for x
    x = 560,567.70/1,023.33
  6. Step 6: Final answer
    x = 547.79

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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.