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Finding the Fourth Proportional to 275,771.40, 413,657.10 and 220,475.40

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Solution

The fourth proportional to 275,771.40, 413,657.10 and 220,475.40 is: 330,713.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,771.40 : 413,657.10 = 220,475.40 : x
  2. Step 2: Convert to fraction form
    275,771.40/413,657.10 = 220,475.40/x
  3. Step 3: Cross multiply
    275,771.40x = 413,657.10 × 220,475.40
  4. Step 4: Simplify right side
    275,771.40x = 91,201,214,585.34
  5. Step 5: Solve for x
    x = 91,201,214,585.34/275,771.40
  6. Step 6: Final answer
    x = 330,713.10

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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.