Home / 1,028,744.20-1,419,337.38-666,447.40

Finding the Fourth Proportional to 1,028,744.20, 1,419,337.38 and 666,447.40

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Solution

The fourth proportional to 1,028,744.20, 1,419,337.38 and 666,447.40 is: 919,483.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,028,744.20 : 1,419,337.38 = 666,447.40 : x
  2. Step 2: Convert to fraction form
    1,028,744.20/1,419,337.38 = 666,447.40/x
  3. Step 3: Cross multiply
    1,028,744.20x = 1,419,337.38 × 666,447.40
  4. Step 4: Simplify right side
    1,028,744.20x = 945,913,706,623.81
  5. Step 5: Solve for x
    x = 945,913,706,623.81/1,028,744.20
  6. Step 6: Final answer
    x = 919,483.88

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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.