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Finding the Fourth Proportional to 1,167.11, 1,750.75 and 473.78

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Solution

The fourth proportional to 1,167.11, 1,750.75 and 473.78 is: 710.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,167.11 : 1,750.75 = 473.78 : x
  2. Step 2: Convert to fraction form
    1,167.11/1,750.75 = 473.78/x
  3. Step 3: Cross multiply
    1,167.11x = 1,750.75 × 473.78
  4. Step 4: Simplify right side
    1,167.11x = 829,460.40
  5. Step 5: Solve for x
    x = 829,460.40/1,167.11
  6. Step 6: Final answer
    x = 710.69

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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.