Home / 434,401.43-599,490.20-243,407.75

Finding the Fourth Proportional to 434,401.43, 599,490.20 and 243,407.75

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Solution

The fourth proportional to 434,401.43, 599,490.20 and 243,407.75 is: 335,911.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,401.43 : 599,490.20 = 243,407.75 : x
  2. Step 2: Convert to fraction form
    434,401.43/599,490.20 = 243,407.75/x
  3. Step 3: Cross multiply
    434,401.43x = 599,490.20 × 243,407.75
  4. Step 4: Simplify right side
    434,401.43x = 145,920,560,729.05
  5. Step 5: Solve for x
    x = 145,920,560,729.05/434,401.43
  6. Step 6: Final answer
    x = 335,911.79

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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.