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Finding the Fourth Proportional to 1,468.16, 2,200.70 and 543.13

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Solution

The fourth proportional to 1,468.16, 2,200.70 and 543.13 is: 814.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,468.16 : 2,200.70 = 543.13 : x
  2. Step 2: Convert to fraction form
    1,468.16/2,200.70 = 543.13/x
  3. Step 3: Cross multiply
    1,468.16x = 2,200.70 × 543.13
  4. Step 4: Simplify right side
    1,468.16x = 1,195,266.19
  5. Step 5: Solve for x
    x = 1,195,266.19/1,468.16
  6. Step 6: Final answer
    x = 814.13

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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.