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Finding the Fourth Proportional to 348,331.20, 521,805.60 and 200,414.40

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Solution

The fourth proportional to 348,331.20, 521,805.60 and 200,414.40 is: 300,223.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,331.20 : 521,805.60 = 200,414.40 : x
  2. Step 2: Convert to fraction form
    348,331.20/521,805.60 = 200,414.40/x
  3. Step 3: Cross multiply
    348,331.20x = 521,805.60 × 200,414.40
  4. Step 4: Simplify right side
    348,331.20x = 104,577,356,240.64
  5. Step 5: Solve for x
    x = 104,577,356,240.64/348,331.20
  6. Step 6: Final answer
    x = 300,223.91

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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.