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Finding the Fourth Proportional to 1,132.36, 1,698.60 and 362.88

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Solution

The fourth proportional to 1,132.36, 1,698.60 and 362.88 is: 544.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,132.36 : 1,698.60 = 362.88 : x
  2. Step 2: Convert to fraction form
    1,132.36/1,698.60 = 362.88/x
  3. Step 3: Cross multiply
    1,132.36x = 1,698.60 × 362.88
  4. Step 4: Simplify right side
    1,132.36x = 616,387.97
  5. Step 5: Solve for x
    x = 616,387.97/1,132.36
  6. Step 6: Final answer
    x = 544.34

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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.