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Finding the Fourth Proportional to 647,358.75, 971,038.13 and 204,126.75

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Solution

The fourth proportional to 647,358.75, 971,038.13 and 204,126.75 is: 306,190.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,358.75 : 971,038.13 = 204,126.75 : x
  2. Step 2: Convert to fraction form
    647,358.75/971,038.13 = 204,126.75/x
  3. Step 3: Cross multiply
    647,358.75x = 971,038.13 × 204,126.75
  4. Step 4: Simplify right side
    647,358.75x = 198,214,857,602.98
  5. Step 5: Solve for x
    x = 198,214,857,602.98/647,358.75
  6. Step 6: Final answer
    x = 306,190.13

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.