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Finding the Fourth Proportional to 1,593.65, 2,390.18 and 554.33

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Solution

The fourth proportional to 1,593.65, 2,390.18 and 554.33 is: 831.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,593.65 : 2,390.18 = 554.33 : x
  2. Step 2: Convert to fraction form
    1,593.65/2,390.18 = 554.33/x
  3. Step 3: Cross multiply
    1,593.65x = 2,390.18 × 554.33
  4. Step 4: Simplify right side
    1,593.65x = 1,324,951.68
  5. Step 5: Solve for x
    x = 1,324,951.68/1,593.65
  6. Step 6: Final answer
    x = 831.39

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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.