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Finding the Fourth Proportional to 1,217,755.22, 1,826,595 and 578,519

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Solution

The fourth proportional to 1,217,755.22, 1,826,595 and 578,519 is: 867,760.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,217,755.22 : 1,826,595 = 578,519 : x
  2. Step 2: Convert to fraction form
    1,217,755.22/1,826,595 = 578,519/x
  3. Step 3: Cross multiply
    1,217,755.22x = 1,826,595 × 578,519
  4. Step 4: Simplify right side
    1,217,755.22x = 1,056,719,912,805
  5. Step 5: Solve for x
    x = 1,056,719,912,805/1,217,755.22
  6. Step 6: Final answer
    x = 867,760.53

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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.