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Finding the Fourth Proportional to 1,096,899.80, 1,644,120.90 and 623,811.80

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Solution

The fourth proportional to 1,096,899.80, 1,644,120.90 and 623,811.80 is: 935,018.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,096,899.80 : 1,644,120.90 = 623,811.80 : x
  2. Step 2: Convert to fraction form
    1,096,899.80/1,644,120.90 = 623,811.80/x
  3. Step 3: Cross multiply
    1,096,899.80x = 1,644,120.90 × 623,811.80
  4. Step 4: Simplify right side
    1,096,899.80x = 1,025,622,018,046.62
  5. Step 5: Solve for x
    x = 1,025,622,018,046.62/1,096,899.80
  6. Step 6: Final answer
    x = 935,018.88

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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.