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Finding the Fourth Proportional to 1,176.06, 1,622.90 and 652.08

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Solution

The fourth proportional to 1,176.06, 1,622.90 and 652.08 is: 899.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,176.06 : 1,622.90 = 652.08 : x
  2. Step 2: Convert to fraction form
    1,176.06/1,622.90 = 652.08/x
  3. Step 3: Cross multiply
    1,176.06x = 1,622.90 × 652.08
  4. Step 4: Simplify right side
    1,176.06x = 1,058,257.37
  5. Step 5: Solve for x
    x = 1,058,257.37/1,176.06
  6. Step 6: Final answer
    x = 899.83

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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.