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Finding the Fourth Proportional to 319,201.65, 440,493.51 and 175,958.61

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Solution

The fourth proportional to 319,201.65, 440,493.51 and 175,958.61 is: 242,820.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,201.65 : 440,493.51 = 175,958.61 : x
  2. Step 2: Convert to fraction form
    319,201.65/440,493.51 = 175,958.61/x
  3. Step 3: Cross multiply
    319,201.65x = 440,493.51 × 175,958.61
  4. Step 4: Simplify right side
    319,201.65x = 77,508,625,733.62
  5. Step 5: Solve for x
    x = 77,508,625,733.62/319,201.65
  6. Step 6: Final answer
    x = 242,820.25

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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.