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Finding the Fourth Proportional to 440,523.60, 617,977.20 and 440,523.60

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Solution

The fourth proportional to 440,523.60, 617,977.20 and 440,523.60 is: 617,977.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,523.60 : 617,977.20 = 440,523.60 : x
  2. Step 2: Convert to fraction form
    440,523.60/617,977.20 = 440,523.60/x
  3. Step 3: Cross multiply
    440,523.60x = 617,977.20 × 440,523.60
  4. Step 4: Simplify right side
    440,523.60x = 272,233,540,861.92
  5. Step 5: Solve for x
    x = 272,233,540,861.92/440,523.60
  6. Step 6: Final answer
    x = 617,977.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.