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Finding the Fourth Proportional to 1,363.84, 2,044.14 and 785.52

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Solution

The fourth proportional to 1,363.84, 2,044.14 and 785.52 is: 1,177.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,363.84 : 2,044.14 = 785.52 : x
  2. Step 2: Convert to fraction form
    1,363.84/2,044.14 = 785.52/x
  3. Step 3: Cross multiply
    1,363.84x = 2,044.14 × 785.52
  4. Step 4: Simplify right side
    1,363.84x = 1,605,712.85
  5. Step 5: Solve for x
    x = 1,605,712.85/1,363.84
  6. Step 6: Final answer
    x = 1,177.35

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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.