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Finding the Fourth Proportional to 572,014.50, 789,380.11 and 317,365.08

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Solution

The fourth proportional to 572,014.50, 789,380.11 and 317,365.08 is: 437,963.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,014.50 : 789,380.11 = 317,365.08 : x
  2. Step 2: Convert to fraction form
    572,014.50/789,380.11 = 317,365.08/x
  3. Step 3: Cross multiply
    572,014.50x = 789,380.11 × 317,365.08
  4. Step 4: Simplify right side
    572,014.50x = 250,521,681,760.56
  5. Step 5: Solve for x
    x = 250,521,681,760.56/572,014.50
  6. Step 6: Final answer
    x = 437,963.87

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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.