Home / 826,619.20-1,239,928.80-616,667.20

Finding the Fourth Proportional to 826,619.20, 1,239,928.80 and 616,667.20

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Solution

The fourth proportional to 826,619.20, 1,239,928.80 and 616,667.20 is: 925,000.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,619.20 : 1,239,928.80 = 616,667.20 : x
  2. Step 2: Convert to fraction form
    826,619.20/1,239,928.80 = 616,667.20/x
  3. Step 3: Cross multiply
    826,619.20x = 1,239,928.80 × 616,667.20
  4. Step 4: Simplify right side
    826,619.20x = 764,623,421,295.36
  5. Step 5: Solve for x
    x = 764,623,421,295.36/826,619.20
  6. Step 6: Final answer
    x = 925,000.80

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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.