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Finding the Fourth Proportional to 1,567.75, 2,351.90 and 527.86

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Solution

The fourth proportional to 1,567.75, 2,351.90 and 527.86 is: 791.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,567.75 : 2,351.90 = 527.86 : x
  2. Step 2: Convert to fraction form
    1,567.75/2,351.90 = 527.86/x
  3. Step 3: Cross multiply
    1,567.75x = 2,351.90 × 527.86
  4. Step 4: Simplify right side
    1,567.75x = 1,241,473.93
  5. Step 5: Solve for x
    x = 1,241,473.93/1,567.75
  6. Step 6: Final answer
    x = 791.88

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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.