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Finding the Fourth Proportional to 506,893.55, 699,511.25 and 274,320.02

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Solution

The fourth proportional to 506,893.55, 699,511.25 and 274,320.02 is: 378,560.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    506,893.55 : 699,511.25 = 274,320.02 : x
  2. Step 2: Convert to fraction form
    506,893.55/699,511.25 = 274,320.02/x
  3. Step 3: Cross multiply
    506,893.55x = 699,511.25 × 274,320.02
  4. Step 4: Simplify right side
    506,893.55x = 191,889,942,524.80
  5. Step 5: Solve for x
    x = 191,889,942,524.80/506,893.55
  6. Step 6: Final answer
    x = 378,560.64

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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.