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Finding the Fourth Proportional to 263,498.47, 363,630.39 and 154,604.66

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Solution

The fourth proportional to 263,498.47, 363,630.39 and 154,604.66 is: 213,355.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,498.47 : 363,630.39 = 154,604.66 : x
  2. Step 2: Convert to fraction form
    263,498.47/363,630.39 = 154,604.66/x
  3. Step 3: Cross multiply
    263,498.47x = 363,630.39 × 154,604.66
  4. Step 4: Simplify right side
    263,498.47x = 56,218,952,495.91
  5. Step 5: Solve for x
    x = 56,218,952,495.91/263,498.47
  6. Step 6: Final answer
    x = 213,355.90

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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.