Home / 826,631.20-1,238,780.40-404,977.60

Finding the Fourth Proportional to 826,631.20, 1,238,780.40 and 404,977.60

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Solution

The fourth proportional to 826,631.20, 1,238,780.40 and 404,977.60 is: 606,894.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,631.20 : 1,238,780.40 = 404,977.60 : x
  2. Step 2: Convert to fraction form
    826,631.20/1,238,780.40 = 404,977.60/x
  3. Step 3: Cross multiply
    826,631.20x = 1,238,780.40 × 404,977.60
  4. Step 4: Simplify right side
    826,631.20x = 501,678,313,319.04
  5. Step 5: Solve for x
    x = 501,678,313,319.04/826,631.20
  6. Step 6: Final answer
    x = 606,894.97

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1.5x scale

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.