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Finding the Fourth Proportional to 1,695.75, 2,543.76 and 463.26

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Solution

The fourth proportional to 1,695.75, 2,543.76 and 463.26 is: 694.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,695.75 : 2,543.76 = 463.26 : x
  2. Step 2: Convert to fraction form
    1,695.75/2,543.76 = 463.26/x
  3. Step 3: Cross multiply
    1,695.75x = 2,543.76 × 463.26
  4. Step 4: Simplify right side
    1,695.75x = 1,178,422.26
  5. Step 5: Solve for x
    x = 1,178,422.26/1,695.75
  6. Step 6: Final answer
    x = 694.93

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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.