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Finding the Fourth Proportional to 444,705.80, 613,279.38 and 411,679.40

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Solution

The fourth proportional to 444,705.80, 613,279.38 and 411,679.40 is: 567,733.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,705.80 : 613,279.38 = 411,679.40 : x
  2. Step 2: Convert to fraction form
    444,705.80/613,279.38 = 411,679.40/x
  3. Step 3: Cross multiply
    444,705.80x = 613,279.38 × 411,679.40
  4. Step 4: Simplify right side
    444,705.80x = 252,474,487,190.77
  5. Step 5: Solve for x
    x = 252,474,487,190.77/444,705.80
  6. Step 6: Final answer
    x = 567,733.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.