Home / 445,669.20-668,707.92-193,026.96

Finding the Fourth Proportional to 445,669.20, 668,707.92 and 193,026.96

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Solution

The fourth proportional to 445,669.20, 668,707.92 and 193,026.96 is: 289,628.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,669.20 : 668,707.92 = 193,026.96 : x
  2. Step 2: Convert to fraction form
    445,669.20/668,707.92 = 193,026.96/x
  3. Step 3: Cross multiply
    445,669.20x = 668,707.92 × 193,026.96
  4. Step 4: Simplify right side
    445,669.20x = 129,078,656,925.52
  5. Step 5: Solve for x
    x = 129,078,656,925.52/445,669.20
  6. Step 6: Final answer
    x = 289,628.85

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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.