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Finding the Fourth Proportional to 548,091.11, 755,990.43 and 357,362.84

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Solution

The fourth proportional to 548,091.11, 755,990.43 and 357,362.84 is: 492,916.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,091.11 : 755,990.43 = 357,362.84 : x
  2. Step 2: Convert to fraction form
    548,091.11/755,990.43 = 357,362.84/x
  3. Step 3: Cross multiply
    548,091.11x = 755,990.43 × 357,362.84
  4. Step 4: Simplify right side
    548,091.11x = 270,162,883,297.67
  5. Step 5: Solve for x
    x = 270,162,883,297.67/548,091.11
  6. Step 6: Final answer
    x = 492,916.01

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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.