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Finding the Fourth Proportional to 571,967.04, 789,314.21 and 313,845.65

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Solution

The fourth proportional to 571,967.04, 789,314.21 and 313,845.65 is: 433,106.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,967.04 : 789,314.21 = 313,845.65 : x
  2. Step 2: Convert to fraction form
    571,967.04/789,314.21 = 313,845.65/x
  3. Step 3: Cross multiply
    571,967.04x = 789,314.21 × 313,845.65
  4. Step 4: Simplify right side
    571,967.04x = 247,722,834,049.59
  5. Step 5: Solve for x
    x = 247,722,834,049.59/571,967.04
  6. Step 6: Final answer
    x = 433,106.83

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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.