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Finding the Fourth Proportional to 1,169.47, 1,615.31 and 924.04

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Solution

The fourth proportional to 1,169.47, 1,615.31 and 924.04 is: 1,276.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,169.47 : 1,615.31 = 924.04 : x
  2. Step 2: Convert to fraction form
    1,169.47/1,615.31 = 924.04/x
  3. Step 3: Cross multiply
    1,169.47x = 1,615.31 × 924.04
  4. Step 4: Simplify right side
    1,169.47x = 1,492,611.92
  5. Step 5: Solve for x
    x = 1,492,611.92/1,169.47
  6. Step 6: Final answer
    x = 1,276.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.