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Finding the Fourth Proportional to 1,498, 2,067.42 and 877

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Solution

The fourth proportional to 1,498, 2,067.42 and 877 is: 1,210.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,498 : 2,067.42 = 877 : x
  2. Step 2: Convert to fraction form
    1,498/2,067.42 = 877/x
  3. Step 3: Cross multiply
    1,498x = 2,067.42 × 877
  4. Step 4: Simplify right side
    1,498x = 1,813,127.34
  5. Step 5: Solve for x
    x = 1,813,127.34/1,498
  6. Step 6: Final answer
    x = 1,210.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.