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Finding the Fourth Proportional to 647,205.80, 893,144.98 and 360,719.73

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Solution

The fourth proportional to 647,205.80, 893,144.98 and 360,719.73 is: 497,793.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,205.80 : 893,144.98 = 360,719.73 : x
  2. Step 2: Convert to fraction form
    647,205.80/893,144.98 = 360,719.73/x
  3. Step 3: Cross multiply
    647,205.80x = 893,144.98 × 360,719.73
  4. Step 4: Simplify right side
    647,205.80x = 322,175,016,487.36
  5. Step 5: Solve for x
    x = 322,175,016,487.36/647,205.80
  6. Step 6: Final answer
    x = 497,793.78

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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.