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Finding the Fourth Proportional to 1,178.95, 1,768.89 and 562.93

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Solution

The fourth proportional to 1,178.95, 1,768.89 and 562.93 is: 844.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,178.95 : 1,768.89 = 562.93 : x
  2. Step 2: Convert to fraction form
    1,178.95/1,768.89 = 562.93/x
  3. Step 3: Cross multiply
    1,178.95x = 1,768.89 × 562.93
  4. Step 4: Simplify right side
    1,178.95x = 995,761.25
  5. Step 5: Solve for x
    x = 995,761.25/1,178.95
  6. Step 6: Final answer
    x = 844.62

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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.