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Finding the Fourth Proportional to 335,420.90, 503,520.15 and 202,451.30

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Solution

The fourth proportional to 335,420.90, 503,520.15 and 202,451.30 is: 303,911.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,420.90 : 503,520.15 = 202,451.30 : x
  2. Step 2: Convert to fraction form
    335,420.90/503,520.15 = 202,451.30/x
  3. Step 3: Cross multiply
    335,420.90x = 503,520.15 × 202,451.30
  4. Step 4: Simplify right side
    335,420.90x = 101,938,308,943.70
  5. Step 5: Solve for x
    x = 101,938,308,943.70/335,420.90
  6. Step 6: Final answer
    x = 303,911.62

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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.