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Finding the Fourth Proportional to 396,401.04, 546,997.32 and 235,228.32

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Solution

The fourth proportional to 396,401.04, 546,997.32 and 235,228.32 is: 324,593.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,401.04 : 546,997.32 = 235,228.32 : x
  2. Step 2: Convert to fraction form
    396,401.04/546,997.32 = 235,228.32/x
  3. Step 3: Cross multiply
    396,401.04x = 546,997.32 × 235,228.32
  4. Step 4: Simplify right side
    396,401.04x = 128,669,260,628.10
  5. Step 5: Solve for x
    x = 128,669,260,628.10/396,401.04
  6. Step 6: Final answer
    x = 324,593.65

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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.