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Finding the Fourth Proportional to 1,964,287.28, 2,710,744.44 and 1,159,471.28

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Solution

The fourth proportional to 1,964,287.28, 2,710,744.44 and 1,159,471.28 is: 1,600,086.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,964,287.28 : 2,710,744.44 = 1,159,471.28 : x
  2. Step 2: Convert to fraction form
    1,964,287.28/2,710,744.44 = 1,159,471.28/x
  3. Step 3: Cross multiply
    1,964,287.28x = 2,710,744.44 × 1,159,471.28
  4. Step 4: Simplify right side
    1,964,287.28x = 3,143,030,325,599.68
  5. Step 5: Solve for x
    x = 3,143,030,325,599.68/1,964,287.28
  6. Step 6: Final answer
    x = 1,600,086.89

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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.