Home / 348,318.20-521,786.10-200,401.40

Finding the Fourth Proportional to 348,318.20, 521,786.10 and 200,401.40

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Solution

The fourth proportional to 348,318.20, 521,786.10 and 200,401.40 is: 300,204.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,318.20 : 521,786.10 = 200,401.40 : x
  2. Step 2: Convert to fraction form
    348,318.20/521,786.10 = 200,401.40/x
  3. Step 3: Cross multiply
    348,318.20x = 521,786.10 × 200,401.40
  4. Step 4: Simplify right side
    348,318.20x = 104,566,664,940.54
  5. Step 5: Solve for x
    x = 104,566,664,940.54/348,318.20
  6. Step 6: Final answer
    x = 300,204.42

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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.