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Finding the Fourth Proportional to 407,567.67, 611,154.87 and 170,846.79

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Solution

The fourth proportional to 407,567.67, 611,154.87 and 170,846.79 is: 256,187.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,567.67 : 611,154.87 = 170,846.79 : x
  2. Step 2: Convert to fraction form
    407,567.67/611,154.87 = 170,846.79/x
  3. Step 3: Cross multiply
    407,567.67x = 611,154.87 × 170,846.79
  4. Step 4: Simplify right side
    407,567.67x = 104,413,847,732.37
  5. Step 5: Solve for x
    x = 104,413,847,732.37/407,567.67
  6. Step 6: Final answer
    x = 256,187.76

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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.