Home / 819,261.72-1,228,066.26-338,826.36

Finding the Fourth Proportional to 819,261.72, 1,228,066.26 and 338,826.36

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Solution

The fourth proportional to 819,261.72, 1,228,066.26 and 338,826.36 is: 507,897.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,261.72 : 1,228,066.26 = 338,826.36 : x
  2. Step 2: Convert to fraction form
    819,261.72/1,228,066.26 = 338,826.36/x
  3. Step 3: Cross multiply
    819,261.72x = 1,228,066.26 × 338,826.36
  4. Step 4: Simplify right side
    819,261.72x = 416,101,220,714.61
  5. Step 5: Solve for x
    x = 416,101,220,714.61/819,261.72
  6. Step 6: Final answer
    x = 507,897.79

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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.