Home / 445,740.29-668,610.37-209,082.97

Finding the Fourth Proportional to 445,740.29, 668,610.37 and 209,082.97

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Solution

The fourth proportional to 445,740.29, 668,610.37 and 209,082.97 is: 313,624.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,740.29 : 668,610.37 = 209,082.97 : x
  2. Step 2: Convert to fraction form
    445,740.29/668,610.37 = 209,082.97/x
  3. Step 3: Cross multiply
    445,740.29x = 668,610.37 × 209,082.97
  4. Step 4: Simplify right side
    445,740.29x = 139,795,037,543.93
  5. Step 5: Solve for x
    x = 139,795,037,543.93/445,740.29
  6. Step 6: Final answer
    x = 313,624.42

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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.