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Finding the Fourth Proportional to 1,667.98, 2,501.97 and 695.17

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Solution

The fourth proportional to 1,667.98, 2,501.97 and 695.17 is: 1,042.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,667.98 : 2,501.97 = 695.17 : x
  2. Step 2: Convert to fraction form
    1,667.98/2,501.97 = 695.17/x
  3. Step 3: Cross multiply
    1,667.98x = 2,501.97 × 695.17
  4. Step 4: Simplify right side
    1,667.98x = 1,739,294.48
  5. Step 5: Solve for x
    x = 1,739,294.48/1,667.98
  6. Step 6: Final answer
    x = 1,042.76

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Similar ratio
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1.5x scale

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.