Home / 445,899.81-668,688.31-189,749.46

Finding the Fourth Proportional to 445,899.81, 668,688.31 and 189,749.46

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Solution

The fourth proportional to 445,899.81, 668,688.31 and 189,749.46 is: 284,555.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,899.81 : 668,688.31 = 189,749.46 : x
  2. Step 2: Convert to fraction form
    445,899.81/668,688.31 = 189,749.46/x
  3. Step 3: Cross multiply
    445,899.81x = 668,688.31 × 189,749.46
  4. Step 4: Simplify right side
    445,899.81x = 126,883,245,730.81
  5. Step 5: Solve for x
    x = 126,883,245,730.81/445,899.81
  6. Step 6: Final answer
    x = 284,555.51

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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.