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Finding the Fourth Proportional to 572,324.16, 789,665.04 and 317,611.56

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Solution

The fourth proportional to 572,324.16, 789,665.04 and 317,611.56 is: 438,224.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,324.16 : 789,665.04 = 317,611.56 : x
  2. Step 2: Convert to fraction form
    572,324.16/789,665.04 = 317,611.56/x
  3. Step 3: Cross multiply
    572,324.16x = 789,665.04 × 317,611.56
  4. Step 4: Simplify right side
    572,324.16x = 250,806,745,231.86
  5. Step 5: Solve for x
    x = 250,806,745,231.86/572,324.16
  6. Step 6: Final answer
    x = 438,224.98

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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.