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Finding the Fourth Proportional to 1,398,899.11, 1,930,480.85 and 795,287.11

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Solution

The fourth proportional to 1,398,899.11, 1,930,480.85 and 795,287.11 is: 1,097,496.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,398,899.11 : 1,930,480.85 = 795,287.11 : x
  2. Step 2: Convert to fraction form
    1,398,899.11/1,930,480.85 = 795,287.11/x
  3. Step 3: Cross multiply
    1,398,899.11x = 1,930,480.85 × 795,287.11
  4. Step 4: Simplify right side
    1,398,899.11x = 1,535,286,532,415.02
  5. Step 5: Solve for x
    x = 1,535,286,532,415.02/1,398,899.11
  6. Step 6: Final answer
    x = 1,097,496.25

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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.