Home / 445,849.19-668,875.84-193,171.71

Finding the Fourth Proportional to 445,849.19, 668,875.84 and 193,171.71

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Solution

The fourth proportional to 445,849.19, 668,875.84 and 193,171.71 is: 289,801.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,849.19 : 668,875.84 = 193,171.71 : x
  2. Step 2: Convert to fraction form
    445,849.19/668,875.84 = 193,171.71/x
  3. Step 3: Cross multiply
    445,849.19x = 668,875.84 × 193,171.71
  4. Step 4: Simplify right side
    445,849.19x = 129,207,889,307.56
  5. Step 5: Solve for x
    x = 129,207,889,307.56/445,849.19
  6. Step 6: Final answer
    x = 289,801.78

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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.