Home / 819,108.32-1,229,216.06-286,633.96

Finding the Fourth Proportional to 819,108.32, 1,229,216.06 and 286,633.96

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Solution

The fourth proportional to 819,108.32, 1,229,216.06 and 286,633.96 is: 430,144.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,108.32 : 1,229,216.06 = 286,633.96 : x
  2. Step 2: Convert to fraction form
    819,108.32/1,229,216.06 = 286,633.96/x
  3. Step 3: Cross multiply
    819,108.32x = 1,229,216.06 × 286,633.96
  4. Step 4: Simplify right side
    819,108.32x = 352,335,064,616.94
  5. Step 5: Solve for x
    x = 352,335,064,616.94/819,108.32
  6. Step 6: Final answer
    x = 430,144.66

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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.