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Finding the Fourth Proportional to 1,695.93, 2,543.48 and 463.28

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Solution

The fourth proportional to 1,695.93, 2,543.48 and 463.28 is: 694.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,695.93 : 2,543.48 = 463.28 : x
  2. Step 2: Convert to fraction form
    1,695.93/2,543.48 = 463.28/x
  3. Step 3: Cross multiply
    1,695.93x = 2,543.48 × 463.28
  4. Step 4: Simplify right side
    1,695.93x = 1,178,343.41
  5. Step 5: Solve for x
    x = 1,178,343.41/1,695.93
  6. Step 6: Final answer
    x = 694.81

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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.