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Finding the Fourth Proportional to 1,074.92, 1,483.46 and 602.86

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Solution

The fourth proportional to 1,074.92, 1,483.46 and 602.86 is: 831.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,074.92 : 1,483.46 = 602.86 : x
  2. Step 2: Convert to fraction form
    1,074.92/1,483.46 = 602.86/x
  3. Step 3: Cross multiply
    1,074.92x = 1,483.46 × 602.86
  4. Step 4: Simplify right side
    1,074.92x = 894,318.70
  5. Step 5: Solve for x
    x = 894,318.70/1,074.92
  6. Step 6: Final answer
    x = 831.99

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.