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Finding the Fourth Proportional to 1,678.92, 2,532.35 and 1,476.01

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Solution

The fourth proportional to 1,678.92, 2,532.35 and 1,476.01 is: 2,226.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,678.92 : 2,532.35 = 1,476.01 : x
  2. Step 2: Convert to fraction form
    1,678.92/2,532.35 = 1,476.01/x
  3. Step 3: Cross multiply
    1,678.92x = 2,532.35 × 1,476.01
  4. Step 4: Simplify right side
    1,678.92x = 3,737,773.92
  5. Step 5: Solve for x
    x = 3,737,773.92/1,678.92
  6. Step 6: Final answer
    x = 2,226.30

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.