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Finding the Fourth Proportional to 1,495.86, 2,242.36 and 617.82

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Solution

The fourth proportional to 1,495.86, 2,242.36 and 617.82 is: 926.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,495.86 : 2,242.36 = 617.82 : x
  2. Step 2: Convert to fraction form
    1,495.86/2,242.36 = 617.82/x
  3. Step 3: Cross multiply
    1,495.86x = 2,242.36 × 617.82
  4. Step 4: Simplify right side
    1,495.86x = 1,385,374.86
  5. Step 5: Solve for x
    x = 1,385,374.86/1,495.86
  6. Step 6: Final answer
    x = 926.14

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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.