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Finding the Fourth Proportional to 395,935.40, 593,903.10 and 115,461.80

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Solution

The fourth proportional to 395,935.40, 593,903.10 and 115,461.80 is: 173,192.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,935.40 : 593,903.10 = 115,461.80 : x
  2. Step 2: Convert to fraction form
    395,935.40/593,903.10 = 115,461.80/x
  3. Step 3: Cross multiply
    395,935.40x = 593,903.10 × 115,461.80
  4. Step 4: Simplify right side
    395,935.40x = 68,573,120,951.58
  5. Step 5: Solve for x
    x = 68,573,120,951.58/395,935.40
  6. Step 6: Final answer
    x = 173,192.70

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Double scale
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Similar ratio
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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.