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Finding the Fourth Proportional to 571,823.73, 789,111.05 and 317,168.37

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Solution

The fourth proportional to 571,823.73, 789,111.05 and 317,168.37 is: 437,689.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,823.73 : 789,111.05 = 317,168.37 : x
  2. Step 2: Convert to fraction form
    571,823.73/789,111.05 = 317,168.37/x
  3. Step 3: Cross multiply
    571,823.73x = 789,111.05 × 317,168.37
  4. Step 4: Simplify right side
    571,823.73x = 250,281,063,891.65
  5. Step 5: Solve for x
    x = 250,281,063,891.65/571,823.73
  6. Step 6: Final answer
    x = 437,689.19

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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.