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Finding the Fourth Proportional to 315,792.39, 435,793.05 and 179,826.36

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Solution

The fourth proportional to 315,792.39, 435,793.05 and 179,826.36 is: 248,160.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,792.39 : 435,793.05 = 179,826.36 : x
  2. Step 2: Convert to fraction form
    315,792.39/435,793.05 = 179,826.36/x
  3. Step 3: Cross multiply
    315,792.39x = 435,793.05 × 179,826.36
  4. Step 4: Simplify right side
    315,792.39x = 78,367,077,894.80
  5. Step 5: Solve for x
    x = 78,367,077,894.80/315,792.39
  6. Step 6: Final answer
    x = 248,160.12

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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.