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Finding the Fourth Proportional to 579,800.25, 800,211.83 and 353,576.97

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Solution

The fourth proportional to 579,800.25, 800,211.83 and 353,576.97 is: 487,989.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,800.25 : 800,211.83 = 353,576.97 : x
  2. Step 2: Convert to fraction form
    579,800.25/800,211.83 = 353,576.97/x
  3. Step 3: Cross multiply
    579,800.25x = 800,211.83 × 353,576.97
  4. Step 4: Simplify right side
    579,800.25x = 282,936,472,441.67
  5. Step 5: Solve for x
    x = 282,936,472,441.67/579,800.25
  6. Step 6: Final answer
    x = 487,989.57

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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.