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Finding the Fourth Proportional to 1,916.04, 2,874.50 and 548.04

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Solution

The fourth proportional to 1,916.04, 2,874.50 and 548.04 is: 822.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,916.04 : 2,874.50 = 548.04 : x
  2. Step 2: Convert to fraction form
    1,916.04/2,874.50 = 548.04/x
  3. Step 3: Cross multiply
    1,916.04x = 2,874.50 × 548.04
  4. Step 4: Simplify right side
    1,916.04x = 1,575,340.98
  5. Step 5: Solve for x
    x = 1,575,340.98/1,916.04
  6. Step 6: Final answer
    x = 822.19

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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.