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Finding the Fourth Proportional to 316,044.88, 436,149.84 and 191,867.36

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Solution

The fourth proportional to 316,044.88, 436,149.84 and 191,867.36 is: 264,781.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,044.88 : 436,149.84 = 191,867.36 : x
  2. Step 2: Convert to fraction form
    316,044.88/436,149.84 = 191,867.36/x
  3. Step 3: Cross multiply
    316,044.88x = 436,149.84 × 191,867.36
  4. Step 4: Simplify right side
    316,044.88x = 83,682,918,365.22
  5. Step 5: Solve for x
    x = 83,682,918,365.22/316,044.88
  6. Step 6: Final answer
    x = 264,781.76

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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.