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Finding the Fourth Proportional to 1,696.06, 2,543.90 and 463.40

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Solution

The fourth proportional to 1,696.06, 2,543.90 and 463.40 is: 695.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,696.06 : 2,543.90 = 463.40 : x
  2. Step 2: Convert to fraction form
    1,696.06/2,543.90 = 463.40/x
  3. Step 3: Cross multiply
    1,696.06x = 2,543.90 × 463.40
  4. Step 4: Simplify right side
    1,696.06x = 1,178,843.26
  5. Step 5: Solve for x
    x = 1,178,843.26/1,696.06
  6. Step 6: Final answer
    x = 695.05

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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.