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Finding the Fourth Proportional to 1,034.44, 1,552.13 and 385.63

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Solution

The fourth proportional to 1,034.44, 1,552.13 and 385.63 is: 578.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,034.44 : 1,552.13 = 385.63 : x
  2. Step 2: Convert to fraction form
    1,034.44/1,552.13 = 385.63/x
  3. Step 3: Cross multiply
    1,034.44x = 1,552.13 × 385.63
  4. Step 4: Simplify right side
    1,034.44x = 598,543.53
  5. Step 5: Solve for x
    x = 598,543.53/1,034.44
  6. Step 6: Final answer
    x = 578.62

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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.