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Finding the Fourth Proportional to 1,567.74, 2,351.88 and 471.95

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Solution

The fourth proportional to 1,567.74, 2,351.88 and 471.95 is: 708.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,567.74 : 2,351.88 = 471.95 : x
  2. Step 2: Convert to fraction form
    1,567.74/2,351.88 = 471.95/x
  3. Step 3: Cross multiply
    1,567.74x = 2,351.88 × 471.95
  4. Step 4: Simplify right side
    1,567.74x = 1,109,958.01
  5. Step 5: Solve for x
    x = 1,109,958.01/1,567.74
  6. Step 6: Final answer
    x = 708.00

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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.