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Finding the Fourth Proportional to 416,487.96, 624,731.90 and 100,944.86

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Solution

The fourth proportional to 416,487.96, 624,731.90 and 100,944.86 is: 151,417.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,487.96 : 624,731.90 = 100,944.86 : x
  2. Step 2: Convert to fraction form
    416,487.96/624,731.90 = 100,944.86/x
  3. Step 3: Cross multiply
    416,487.96x = 624,731.90 × 100,944.86
  4. Step 4: Simplify right side
    416,487.96x = 63,063,474,183.03
  5. Step 5: Solve for x
    x = 63,063,474,183.03/416,487.96
  6. Step 6: Final answer
    x = 151,417.28

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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.