Home / 2,665,183.70-3,997,740.27-643,416.72

Finding the Fourth Proportional to 2,665,183.70, 3,997,740.27 and 643,416.72

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Solution

The fourth proportional to 2,665,183.70, 3,997,740.27 and 643,416.72 is: 965,116.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,665,183.70 : 3,997,740.27 = 643,416.72 : x
  2. Step 2: Convert to fraction form
    2,665,183.70/3,997,740.27 = 643,416.72/x
  3. Step 3: Cross multiply
    2,665,183.70x = 3,997,740.27 × 643,416.72
  4. Step 4: Simplify right side
    2,665,183.70x = 2,572,212,908,729.53
  5. Step 5: Solve for x
    x = 2,572,212,908,729.53/2,665,183.70
  6. Step 6: Final answer
    x = 965,116.55

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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.