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Finding the Fourth Proportional to 1,167.07, 1,750.51 and 345.33

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Solution

The fourth proportional to 1,167.07, 1,750.51 and 345.33 is: 517.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,167.07 : 1,750.51 = 345.33 : x
  2. Step 2: Convert to fraction form
    1,167.07/1,750.51 = 345.33/x
  3. Step 3: Cross multiply
    1,167.07x = 1,750.51 × 345.33
  4. Step 4: Simplify right side
    1,167.07x = 604,503.62
  5. Step 5: Solve for x
    x = 604,503.62/1,167.07
  6. Step 6: Final answer
    x = 517.97

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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.