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Finding the Fourth Proportional to 1,116.18, 1,671.17 and 567.18

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Solution

The fourth proportional to 1,116.18, 1,671.17 and 567.18 is: 849.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,116.18 : 1,671.17 = 567.18 : x
  2. Step 2: Convert to fraction form
    1,116.18/1,671.17 = 567.18/x
  3. Step 3: Cross multiply
    1,116.18x = 1,671.17 × 567.18
  4. Step 4: Simplify right side
    1,116.18x = 947,851.36
  5. Step 5: Solve for x
    x = 947,851.36/1,116.18
  6. Step 6: Final answer
    x = 849.19

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Double scale
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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.