Home / 1,419,218.70-2,128,079.00-619,564.02

Finding the Fourth Proportional to 1,419,218.70, 2,128,079.00 and 619,564.02

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Solution

The fourth proportional to 1,419,218.70, 2,128,079.00 and 619,564.02 is: 929,019.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,419,218.70 : 2,128,079.00 = 619,564.02 : x
  2. Step 2: Convert to fraction form
    1,419,218.70/2,128,079.00 = 619,564.02/x
  3. Step 3: Cross multiply
    1,419,218.70x = 2,128,079.00 × 619,564.02
  4. Step 4: Simplify right side
    1,419,218.70x = 1,318,481,177,019.76
  5. Step 5: Solve for x
    x = 1,318,481,177,019.76/1,419,218.70
  6. Step 6: Final answer
    x = 929,019.03

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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.