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Finding the Fourth Proportional to 1,492.29, 2,238.56 and 567.69

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Solution

The fourth proportional to 1,492.29, 2,238.56 and 567.69 is: 851.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,492.29 : 2,238.56 = 567.69 : x
  2. Step 2: Convert to fraction form
    1,492.29/2,238.56 = 567.69/x
  3. Step 3: Cross multiply
    1,492.29x = 2,238.56 × 567.69
  4. Step 4: Simplify right side
    1,492.29x = 1,270,805.29
  5. Step 5: Solve for x
    x = 1,270,805.29/1,492.29
  6. Step 6: Final answer
    x = 851.58

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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.