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Finding the Fourth Proportional to 1,658.96, 2,486.70 and 562.94

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Solution

The fourth proportional to 1,658.96, 2,486.70 and 562.94 is: 843.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,658.96 : 2,486.70 = 562.94 : x
  2. Step 2: Convert to fraction form
    1,658.96/2,486.70 = 562.94/x
  3. Step 3: Cross multiply
    1,658.96x = 2,486.70 × 562.94
  4. Step 4: Simplify right side
    1,658.96x = 1,399,862.90
  5. Step 5: Solve for x
    x = 1,399,862.90/1,658.96
  6. Step 6: Final answer
    x = 843.82

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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.