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Finding the Fourth Proportional to 1,175.04, 1,621.22 and 732.24

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Solution

The fourth proportional to 1,175.04, 1,621.22 and 732.24 is: 1,010.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,175.04 : 1,621.22 = 732.24 : x
  2. Step 2: Convert to fraction form
    1,175.04/1,621.22 = 732.24/x
  3. Step 3: Cross multiply
    1,175.04x = 1,621.22 × 732.24
  4. Step 4: Simplify right side
    1,175.04x = 1,187,118.47
  5. Step 5: Solve for x
    x = 1,187,118.47/1,175.04
  6. Step 6: Final answer
    x = 1,010.28

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1.5x scale

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.