Home / 319,801-441,377.22-185,742.76

Finding the Fourth Proportional to 319,801, 441,377.22 and 185,742.76

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Solution

The fourth proportional to 319,801, 441,377.22 and 185,742.76 is: 256,355.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,801 : 441,377.22 = 185,742.76 : x
  2. Step 2: Convert to fraction form
    319,801/441,377.22 = 185,742.76/x
  3. Step 3: Cross multiply
    319,801x = 441,377.22 × 185,742.76
  4. Step 4: Simplify right side
    319,801x = 81,982,623,043.93
  5. Step 5: Solve for x
    x = 81,982,623,043.93/319,801
  6. Step 6: Final answer
    x = 256,355.12

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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.