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Finding the Fourth Proportional to 722,687.54, 997,776.83 and 464,680.38

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Solution

The fourth proportional to 722,687.54, 997,776.83 and 464,680.38 is: 641,559.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,687.54 : 997,776.83 = 464,680.38 : x
  2. Step 2: Convert to fraction form
    722,687.54/997,776.83 = 464,680.38/x
  3. Step 3: Cross multiply
    722,687.54x = 997,776.83 × 464,680.38
  4. Step 4: Simplify right side
    722,687.54x = 463,647,316,519.60
  5. Step 5: Solve for x
    x = 463,647,316,519.60/722,687.54
  6. Step 6: Final answer
    x = 641,559.86

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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.