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Finding the Fourth Proportional to 763,705.98, 1,053,797.22 and 441,353.88

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Solution

The fourth proportional to 763,705.98, 1,053,797.22 and 441,353.88 is: 609,000.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,705.98 : 1,053,797.22 = 441,353.88 : x
  2. Step 2: Convert to fraction form
    763,705.98/1,053,797.22 = 441,353.88/x
  3. Step 3: Cross multiply
    763,705.98x = 1,053,797.22 × 441,353.88
  4. Step 4: Simplify right side
    763,705.98x = 465,097,491,780.21
  5. Step 5: Solve for x
    x = 465,097,491,780.21/763,705.98
  6. Step 6: Final answer
    x = 609,000.72

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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.