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Finding the Fourth Proportional to 611,708.12, 844,249.18 and 440,193.86

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Solution

The fourth proportional to 611,708.12, 844,249.18 and 440,193.86 is: 607,533.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,708.12 : 844,249.18 = 440,193.86 : x
  2. Step 2: Convert to fraction form
    611,708.12/844,249.18 = 440,193.86/x
  3. Step 3: Cross multiply
    611,708.12x = 844,249.18 × 440,193.86
  4. Step 4: Simplify right side
    611,708.12x = 371,633,304,015.60
  5. Step 5: Solve for x
    x = 371,633,304,015.60/611,708.12
  6. Step 6: Final answer
    x = 607,533.71

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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.