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Finding the Fourth Proportional to 264,340.70, 364,780.40 and 143,479.44

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Solution

The fourth proportional to 264,340.70, 364,780.40 and 143,479.44 is: 197,996.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,340.70 : 364,780.40 = 143,479.44 : x
  2. Step 2: Convert to fraction form
    264,340.70/364,780.40 = 143,479.44/x
  3. Step 3: Cross multiply
    264,340.70x = 364,780.40 × 143,479.44
  4. Step 4: Simplify right side
    264,340.70x = 52,338,487,514.98
  5. Step 5: Solve for x
    x = 52,338,487,514.98/264,340.70
  6. Step 6: Final answer
    x = 197,996.33

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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.