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Finding the Fourth Proportional to 319,765.32, 479,190.33 and 234,859.50

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Solution

The fourth proportional to 319,765.32, 479,190.33 and 234,859.50 is: 351,953.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,765.32 : 479,190.33 = 234,859.50 : x
  2. Step 2: Convert to fraction form
    319,765.32/479,190.33 = 234,859.50/x
  3. Step 3: Cross multiply
    319,765.32x = 479,190.33 × 234,859.50
  4. Step 4: Simplify right side
    319,765.32x = 112,542,401,308.64
  5. Step 5: Solve for x
    x = 112,542,401,308.64/319,765.32
  6. Step 6: Final answer
    x = 351,953.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.