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Finding the Fourth Proportional to 1,167.38, 1,751.37 and 437.01

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Solution

The fourth proportional to 1,167.38, 1,751.37 and 437.01 is: 655.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,167.38 : 1,751.37 = 437.01 : x
  2. Step 2: Convert to fraction form
    1,167.38/1,751.37 = 437.01/x
  3. Step 3: Cross multiply
    1,167.38x = 1,751.37 × 437.01
  4. Step 4: Simplify right side
    1,167.38x = 765,355.26
  5. Step 5: Solve for x
    x = 765,355.26/1,167.38
  6. Step 6: Final answer
    x = 655.62

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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.