Home / 826,632.20-1,238,781.90-404,978.60

Finding the Fourth Proportional to 826,632.20, 1,238,781.90 and 404,978.60

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Solution

The fourth proportional to 826,632.20, 1,238,781.90 and 404,978.60 is: 606,896.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,632.20 : 1,238,781.90 = 404,978.60 : x
  2. Step 2: Convert to fraction form
    826,632.20/1,238,781.90 = 404,978.60/x
  3. Step 3: Cross multiply
    826,632.20x = 1,238,781.90 × 404,978.60
  4. Step 4: Simplify right side
    826,632.20x = 501,680,159,567.34
  5. Step 5: Solve for x
    x = 501,680,159,567.34/826,632.20
  6. Step 6: Final answer
    x = 606,896.46

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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.