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Finding the Fourth Proportional to 440,441.10, 617,861.70 and 440,441.10

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Solution

The fourth proportional to 440,441.10, 617,861.70 and 440,441.10 is: 617,861.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,441.10 : 617,861.70 = 440,441.10 : x
  2. Step 2: Convert to fraction form
    440,441.10/617,861.70 = 440,441.10/x
  3. Step 3: Cross multiply
    440,441.10x = 617,861.70 × 440,441.10
  4. Step 4: Simplify right side
    440,441.10x = 272,131,686,795.87
  5. Step 5: Solve for x
    x = 272,131,686,795.87/440,441.10
  6. Step 6: Final answer
    x = 617,861.70

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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.