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Finding the Fourth Proportional to 1,116.57, 1,674.80 and 467.25

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Solution

The fourth proportional to 1,116.57, 1,674.80 and 467.25 is: 700.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,116.57 : 1,674.80 = 467.25 : x
  2. Step 2: Convert to fraction form
    1,116.57/1,674.80 = 467.25/x
  3. Step 3: Cross multiply
    1,116.57x = 1,674.80 × 467.25
  4. Step 4: Simplify right side
    1,116.57x = 782,547.96
  5. Step 5: Solve for x
    x = 782,547.96/1,116.57
  6. Step 6: Final answer
    x = 700.85

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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.