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Finding the Fourth Proportional to 647,553.20, 971,329.80 and 597,786.80

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Solution

The fourth proportional to 647,553.20, 971,329.80 and 597,786.80 is: 896,680.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,553.20 : 971,329.80 = 597,786.80 : x
  2. Step 2: Convert to fraction form
    647,553.20/971,329.80 = 597,786.80/x
  3. Step 3: Cross multiply
    647,553.20x = 971,329.80 × 597,786.80
  4. Step 4: Simplify right side
    647,553.20x = 580,648,132,886.64
  5. Step 5: Solve for x
    x = 580,648,132,886.64/647,553.20
  6. Step 6: Final answer
    x = 896,680.20

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Double scale
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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.