Home / 641,531.20-962,026.56-192,316.48

Finding the Fourth Proportional to 641,531.20, 962,026.56 and 192,316.48

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Solution

The fourth proportional to 641,531.20, 962,026.56 and 192,316.48 is: 288,393.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,531.20 : 962,026.56 = 192,316.48 : x
  2. Step 2: Convert to fraction form
    641,531.20/962,026.56 = 192,316.48/x
  3. Step 3: Cross multiply
    641,531.20x = 962,026.56 × 192,316.48
  4. Step 4: Simplify right side
    641,531.20x = 185,013,561,685.71
  5. Step 5: Solve for x
    x = 185,013,561,685.71/641,531.20
  6. Step 6: Final answer
    x = 288,393.71

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1.5x scale

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.