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Finding the Fourth Proportional to 456,850.38, 684,765.81 and 190,522.38

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Solution

The fourth proportional to 456,850.38, 684,765.81 and 190,522.38 is: 285,570.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,850.38 : 684,765.81 = 190,522.38 : x
  2. Step 2: Convert to fraction form
    456,850.38/684,765.81 = 190,522.38/x
  3. Step 3: Cross multiply
    456,850.38x = 684,765.81 × 190,522.38
  4. Step 4: Simplify right side
    456,850.38x = 130,463,211,863.83
  5. Step 5: Solve for x
    x = 130,463,211,863.83/456,850.38
  6. Step 6: Final answer
    x = 285,570.98

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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.