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Finding the Fourth Proportional to 1,583.13, 2,375.16 and 705.85

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Solution

The fourth proportional to 1,583.13, 2,375.16 and 705.85 is: 1,058.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,583.13 : 2,375.16 = 705.85 : x
  2. Step 2: Convert to fraction form
    1,583.13/2,375.16 = 705.85/x
  3. Step 3: Cross multiply
    1,583.13x = 2,375.16 × 705.85
  4. Step 4: Simplify right side
    1,583.13x = 1,676,506.69
  5. Step 5: Solve for x
    x = 1,676,506.69/1,583.13
  6. Step 6: Final answer
    x = 1,058.98

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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.