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Finding the Fourth Proportional to 572,160.82, 789,589.05 and 317,535.70

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Solution

The fourth proportional to 572,160.82, 789,589.05 and 317,535.70 is: 438,203.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,160.82 : 789,589.05 = 317,535.70 : x
  2. Step 2: Convert to fraction form
    572,160.82/789,589.05 = 317,535.70/x
  3. Step 3: Cross multiply
    572,160.82x = 789,589.05 × 317,535.70
  4. Step 4: Simplify right side
    572,160.82x = 250,722,711,704.09
  5. Step 5: Solve for x
    x = 250,722,711,704.09/572,160.82
  6. Step 6: Final answer
    x = 438,203.22

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1.5x scale

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.