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Finding the Fourth Proportional to 1,132.45, 1,698.66 and 362.95

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Solution

The fourth proportional to 1,132.45, 1,698.66 and 362.95 is: 544.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,132.45 : 1,698.66 = 362.95 : x
  2. Step 2: Convert to fraction form
    1,132.45/1,698.66 = 362.95/x
  3. Step 3: Cross multiply
    1,132.45x = 1,698.66 × 362.95
  4. Step 4: Simplify right side
    1,132.45x = 616,528.65
  5. Step 5: Solve for x
    x = 616,528.65/1,132.45
  6. Step 6: Final answer
    x = 544.42

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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.