Home / 394,867.11-592,300.22-128,627.20

Finding the Fourth Proportional to 394,867.11, 592,300.22 and 128,627.20

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Solution

The fourth proportional to 394,867.11, 592,300.22 and 128,627.20 is: 192,940.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,867.11 : 592,300.22 = 128,627.20 : x
  2. Step 2: Convert to fraction form
    394,867.11/592,300.22 = 128,627.20/x
  3. Step 3: Cross multiply
    394,867.11x = 592,300.22 × 128,627.20
  4. Step 4: Simplify right side
    394,867.11x = 76,185,918,955.22
  5. Step 5: Solve for x
    x = 76,185,918,955.22/394,867.11
  6. Step 6: Final answer
    x = 192,940.65

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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.