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Finding the Fourth Proportional to 1,059,891.40, 1,589,837.10 and 943,769.80

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Solution

The fourth proportional to 1,059,891.40, 1,589,837.10 and 943,769.80 is: 1,415,654.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,059,891.40 : 1,589,837.10 = 943,769.80 : x
  2. Step 2: Convert to fraction form
    1,059,891.40/1,589,837.10 = 943,769.80/x
  3. Step 3: Cross multiply
    1,059,891.40x = 1,589,837.10 × 943,769.80
  4. Step 4: Simplify right side
    1,059,891.40x = 1,500,440,241,899.58
  5. Step 5: Solve for x
    x = 1,500,440,241,899.58/1,059,891.40
  6. Step 6: Final answer
    x = 1,415,654.70

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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.