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Finding the Fourth Proportional to 340,279.74, 469,613.16 and 197,042.31

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Solution

The fourth proportional to 340,279.74, 469,613.16 and 197,042.31 is: 271,934.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,279.74 : 469,613.16 = 197,042.31 : x
  2. Step 2: Convert to fraction form
    340,279.74/469,613.16 = 197,042.31/x
  3. Step 3: Cross multiply
    340,279.74x = 469,613.16 × 197,042.31
  4. Step 4: Simplify right side
    340,279.74x = 92,533,661,852.80
  5. Step 5: Solve for x
    x = 92,533,661,852.80/340,279.74
  6. Step 6: Final answer
    x = 271,934.09

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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.