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Finding the Fourth Proportional to 1,176.30, 1,623.26 and 652.32

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Solution

The fourth proportional to 1,176.30, 1,623.26 and 652.32 is: 900.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,176.30 : 1,623.26 = 652.32 : x
  2. Step 2: Convert to fraction form
    1,176.30/1,623.26 = 652.32/x
  3. Step 3: Cross multiply
    1,176.30x = 1,623.26 × 652.32
  4. Step 4: Simplify right side
    1,176.30x = 1,058,884.96
  5. Step 5: Solve for x
    x = 1,058,884.96/1,176.30
  6. Step 6: Final answer
    x = 900.18

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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.