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Finding the Fourth Proportional to 277,689.55, 383,239.87 and 200,228.91

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Solution

The fourth proportional to 277,689.55, 383,239.87 and 200,228.91 is: 276,336.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,689.55 : 383,239.87 = 200,228.91 : x
  2. Step 2: Convert to fraction form
    277,689.55/383,239.87 = 200,228.91/x
  3. Step 3: Cross multiply
    277,689.55x = 383,239.87 × 200,228.91
  4. Step 4: Simplify right side
    277,689.55x = 76,735,700,437.50
  5. Step 5: Solve for x
    x = 76,735,700,437.50/277,689.55
  6. Step 6: Final answer
    x = 276,336.30

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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.