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Finding the Fourth Proportional to 504,971.72, 696,230.65 and 323,385.11

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Solution

The fourth proportional to 504,971.72, 696,230.65 and 323,385.11 is: 445,867.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,971.72 : 696,230.65 = 323,385.11 : x
  2. Step 2: Convert to fraction form
    504,971.72/696,230.65 = 323,385.11/x
  3. Step 3: Cross multiply
    504,971.72x = 696,230.65 × 323,385.11
  4. Step 4: Simplify right side
    504,971.72x = 225,150,625,335.62
  5. Step 5: Solve for x
    x = 225,150,625,335.62/504,971.72
  6. Step 6: Final answer
    x = 445,867.79

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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.