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Finding the Fourth Proportional to 1,170.48, 1,614.53 and 750.39

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Solution

The fourth proportional to 1,170.48, 1,614.53 and 750.39 is: 1,035.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,170.48 : 1,614.53 = 750.39 : x
  2. Step 2: Convert to fraction form
    1,170.48/1,614.53 = 750.39/x
  3. Step 3: Cross multiply
    1,170.48x = 1,614.53 × 750.39
  4. Step 4: Simplify right side
    1,170.48x = 1,211,523.41
  5. Step 5: Solve for x
    x = 1,211,523.41/1,170.48
  6. Step 6: Final answer
    x = 1,035.07

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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.