Home / 386,401.89-533,240.15-233,418.85

Finding the Fourth Proportional to 386,401.89, 533,240.15 and 233,418.85

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Solution

The fourth proportional to 386,401.89, 533,240.15 and 233,418.85 is: 322,121.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,401.89 : 533,240.15 = 233,418.85 : x
  2. Step 2: Convert to fraction form
    386,401.89/533,240.15 = 233,418.85/x
  3. Step 3: Cross multiply
    386,401.89x = 533,240.15 × 233,418.85
  4. Step 4: Simplify right side
    386,401.89x = 124,468,303,320.98
  5. Step 5: Solve for x
    x = 124,468,303,320.98/386,401.89
  6. Step 6: Final answer
    x = 322,121.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.