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Finding the Fourth Proportional to 1,117.18, 1,674.42 and 467.16

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Solution

The fourth proportional to 1,117.18, 1,674.42 and 467.16 is: 700.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,117.18 : 1,674.42 = 467.16 : x
  2. Step 2: Convert to fraction form
    1,117.18/1,674.42 = 467.16/x
  3. Step 3: Cross multiply
    1,117.18x = 1,674.42 × 467.16
  4. Step 4: Simplify right side
    1,117.18x = 782,222.05
  5. Step 5: Solve for x
    x = 782,222.05/1,117.18
  6. Step 6: Final answer
    x = 700.18

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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.