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Finding the Fourth Proportional to 924.04, 1,265.46 and 911.89

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Solution

The fourth proportional to 924.04, 1,265.46 and 911.89 is: 1,248.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    924.04 : 1,265.46 = 911.89 : x
  2. Step 2: Convert to fraction form
    924.04/1,265.46 = 911.89/x
  3. Step 3: Cross multiply
    924.04x = 1,265.46 × 911.89
  4. Step 4: Simplify right side
    924.04x = 1,153,960.32
  5. Step 5: Solve for x
    x = 1,153,960.32/924.04
  6. Step 6: Final answer
    x = 1,248.82

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.