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Finding the Fourth Proportional to 1,084.06, 1,626.24 and 353.46

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Solution

The fourth proportional to 1,084.06, 1,626.24 and 353.46 is: 530.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,084.06 : 1,626.24 = 353.46 : x
  2. Step 2: Convert to fraction form
    1,084.06/1,626.24 = 353.46/x
  3. Step 3: Cross multiply
    1,084.06x = 1,626.24 × 353.46
  4. Step 4: Simplify right side
    1,084.06x = 574,818.21
  5. Step 5: Solve for x
    x = 574,818.21/1,084.06
  6. Step 6: Final answer
    x = 530.25

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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.