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Finding the Fourth Proportional to 1,412,819.22, 1,949,700.66 and 768,234.80

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Solution

The fourth proportional to 1,412,819.22, 1,949,700.66 and 768,234.80 is: 1,060,169.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,412,819.22 : 1,949,700.66 = 768,234.80 : x
  2. Step 2: Convert to fraction form
    1,412,819.22/1,949,700.66 = 768,234.80/x
  3. Step 3: Cross multiply
    1,412,819.22x = 1,949,700.66 × 768,234.80
  4. Step 4: Simplify right side
    1,412,819.22x = 1,497,827,886,846.46
  5. Step 5: Solve for x
    x = 1,497,827,886,846.46/1,412,819.22
  6. Step 6: Final answer
    x = 1,060,169.53

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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.