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Finding the Fourth Proportional to 1,552, 2,328.36 and 1,118.38

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Solution

The fourth proportional to 1,552, 2,328.36 and 1,118.38 is: 1,677.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,552 : 2,328.36 = 1,118.38 : x
  2. Step 2: Convert to fraction form
    1,552/2,328.36 = 1,118.38/x
  3. Step 3: Cross multiply
    1,552x = 2,328.36 × 1,118.38
  4. Step 4: Simplify right side
    1,552x = 2,603,991.26
  5. Step 5: Solve for x
    x = 2,603,991.26/1,552
  6. Step 6: Final answer
    x = 1,677.83

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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.