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Finding the Fourth Proportional to 395,285.88, 545,273.19 and 233,983.71

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Solution

The fourth proportional to 395,285.88, 545,273.19 and 233,983.71 is: 322,766.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,285.88 : 545,273.19 = 233,983.71 : x
  2. Step 2: Convert to fraction form
    395,285.88/545,273.19 = 233,983.71/x
  3. Step 3: Cross multiply
    395,285.88x = 545,273.19 × 233,983.71
  4. Step 4: Simplify right side
    395,285.88x = 127,585,043,959.74
  5. Step 5: Solve for x
    x = 127,585,043,959.74/395,285.88
  6. Step 6: Final answer
    x = 322,766.51

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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.