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Finding the Fourth Proportional to 1,492.29, 2,238.44 and 567.63

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Solution

The fourth proportional to 1,492.29, 2,238.44 and 567.63 is: 851.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,492.29 : 2,238.44 = 567.63 : x
  2. Step 2: Convert to fraction form
    1,492.29/2,238.44 = 567.63/x
  3. Step 3: Cross multiply
    1,492.29x = 2,238.44 × 567.63
  4. Step 4: Simplify right side
    1,492.29x = 1,270,605.70
  5. Step 5: Solve for x
    x = 1,270,605.70/1,492.29
  6. Step 6: Final answer
    x = 851.45

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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.