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Finding the Fourth Proportional to 1,167.79, 1,751.70 and 302.17

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Solution

The fourth proportional to 1,167.79, 1,751.70 and 302.17 is: 453.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,167.79 : 1,751.70 = 302.17 : x
  2. Step 2: Convert to fraction form
    1,167.79/1,751.70 = 302.17/x
  3. Step 3: Cross multiply
    1,167.79x = 1,751.70 × 302.17
  4. Step 4: Simplify right side
    1,167.79x = 529,311.19
  5. Step 5: Solve for x
    x = 529,311.19/1,167.79
  6. Step 6: Final answer
    x = 453.26

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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.