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Finding the Fourth Proportional to 611,526.69, 843,878.39 and 339,611.85

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Solution

The fourth proportional to 611,526.69, 843,878.39 and 339,611.85 is: 468,648.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,526.69 : 843,878.39 = 339,611.85 : x
  2. Step 2: Convert to fraction form
    611,526.69/843,878.39 = 339,611.85/x
  3. Step 3: Cross multiply
    611,526.69x = 843,878.39 × 339,611.85
  4. Step 4: Simplify right side
    611,526.69x = 286,591,099,504.86
  5. Step 5: Solve for x
    x = 286,591,099,504.86/611,526.69
  6. Step 6: Final answer
    x = 468,648.55

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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.