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Finding the Fourth Proportional to 611,180, 843,338.52 and 339,249.96

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Solution

The fourth proportional to 611,180, 843,338.52 and 339,249.96 is: 468,115.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,180 : 843,338.52 = 339,249.96 : x
  2. Step 2: Convert to fraction form
    611,180/843,338.52 = 339,249.96/x
  3. Step 3: Cross multiply
    611,180x = 843,338.52 × 339,249.96
  4. Step 4: Simplify right side
    611,180x = 286,102,559,176.46
  5. Step 5: Solve for x
    x = 286,102,559,176.46/611,180
  6. Step 6: Final answer
    x = 468,115.05

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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.