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Finding the Fourth Proportional to 618,319.20, 927,454.44 and 218,943.84

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Solution

The fourth proportional to 618,319.20, 927,454.44 and 218,943.84 is: 328,407.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,319.20 : 927,454.44 = 218,943.84 : x
  2. Step 2: Convert to fraction form
    618,319.20/927,454.44 = 218,943.84/x
  3. Step 3: Cross multiply
    618,319.20x = 927,454.44 × 218,943.84
  4. Step 4: Simplify right side
    618,319.20x = 203,060,436,518.65
  5. Step 5: Solve for x
    x = 203,060,436,518.65/618,319.20
  6. Step 6: Final answer
    x = 328,407.13

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1.5x scale

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.