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Finding the Fourth Proportional to 1,170.03, 1,614.09 and 750.18

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Solution

The fourth proportional to 1,170.03, 1,614.09 and 750.18 is: 1,034.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,170.03 : 1,614.09 = 750.18 : x
  2. Step 2: Convert to fraction form
    1,170.03/1,614.09 = 750.18/x
  3. Step 3: Cross multiply
    1,170.03x = 1,614.09 × 750.18
  4. Step 4: Simplify right side
    1,170.03x = 1,210,858.04
  5. Step 5: Solve for x
    x = 1,210,858.04/1,170.03
  6. Step 6: Final answer
    x = 1,034.89

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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.