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Finding the Fourth Proportional to 1,176.20, 1,623.16 and 652.24

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Solution

The fourth proportional to 1,176.20, 1,623.16 and 652.24 is: 900.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,176.20 : 1,623.16 = 652.24 : x
  2. Step 2: Convert to fraction form
    1,176.20/1,623.16 = 652.24/x
  3. Step 3: Cross multiply
    1,176.20x = 1,623.16 × 652.24
  4. Step 4: Simplify right side
    1,176.20x = 1,058,689.88
  5. Step 5: Solve for x
    x = 1,058,689.88/1,176.20
  6. Step 6: Final answer
    x = 900.09

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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.