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Finding the Fourth Proportional to 298,812.67, 412,361.55 and 162,846.65

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Solution

The fourth proportional to 298,812.67, 412,361.55 and 162,846.65 is: 224,728.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,812.67 : 412,361.55 = 162,846.65 : x
  2. Step 2: Convert to fraction form
    298,812.67/412,361.55 = 162,846.65/x
  3. Step 3: Cross multiply
    298,812.67x = 412,361.55 × 162,846.65
  4. Step 4: Simplify right side
    298,812.67x = 67,151,697,006.31
  5. Step 5: Solve for x
    x = 67,151,697,006.31/298,812.67
  6. Step 6: Final answer
    x = 224,728.41

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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.