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Finding the Fourth Proportional to 571,796.32, 789,173.40 and 317,229.52

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Solution

The fourth proportional to 571,796.32, 789,173.40 and 317,229.52 is: 437,829.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,796.32 : 789,173.40 = 317,229.52 : x
  2. Step 2: Convert to fraction form
    571,796.32/789,173.40 = 317,229.52/x
  3. Step 3: Cross multiply
    571,796.32x = 789,173.40 × 317,229.52
  4. Step 4: Simplify right side
    571,796.32x = 250,349,098,878.77
  5. Step 5: Solve for x
    x = 250,349,098,878.77/571,796.32
  6. Step 6: Final answer
    x = 437,829.15

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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.