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Finding the Fourth Proportional to 315,659.52, 435,481.17 and 233,071.43

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Solution

The fourth proportional to 315,659.52, 435,481.17 and 233,071.43 is: 321,543.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,659.52 : 435,481.17 = 233,071.43 : x
  2. Step 2: Convert to fraction form
    315,659.52/435,481.17 = 233,071.43/x
  3. Step 3: Cross multiply
    315,659.52x = 435,481.17 × 233,071.43
  4. Step 4: Simplify right side
    315,659.52x = 101,498,216,852.57
  5. Step 5: Solve for x
    x = 101,498,216,852.57/315,659.52
  6. Step 6: Final answer
    x = 321,543.34

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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.