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Finding the Fourth Proportional to 611,197.86, 843,410.82 and 339,244.38

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Solution

The fourth proportional to 611,197.86, 843,410.82 and 339,244.38 is: 468,133.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,197.86 : 843,410.82 = 339,244.38 : x
  2. Step 2: Convert to fraction form
    611,197.86/843,410.82 = 339,244.38/x
  3. Step 3: Cross multiply
    611,197.86x = 843,410.82 × 339,244.38
  4. Step 4: Simplify right side
    611,197.86x = 286,122,380,716.19
  5. Step 5: Solve for x
    x = 286,122,380,716.19/611,197.86
  6. Step 6: Final answer
    x = 468,133.81

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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.