Home / 319,081.20-440,335.07-175,846.47

Finding the Fourth Proportional to 319,081.20, 440,335.07 and 175,846.47

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Solution

The fourth proportional to 319,081.20, 440,335.07 and 175,846.47 is: 242,669.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,081.20 : 440,335.07 = 175,846.47 : x
  2. Step 2: Convert to fraction form
    319,081.20/440,335.07 = 175,846.47/x
  3. Step 3: Cross multiply
    319,081.20x = 440,335.07 × 175,846.47
  4. Step 4: Simplify right side
    319,081.20x = 77,431,367,676.70
  5. Step 5: Solve for x
    x = 77,431,367,676.70/319,081.20
  6. Step 6: Final answer
    x = 242,669.79

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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.