Home / 418,238.96-626,516.43-193,289.60

Finding the Fourth Proportional to 418,238.96, 626,516.43 and 193,289.60

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Solution

The fourth proportional to 418,238.96, 626,516.43 and 193,289.60 is: 289,545.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,238.96 : 626,516.43 = 193,289.60 : x
  2. Step 2: Convert to fraction form
    418,238.96/626,516.43 = 193,289.60/x
  3. Step 3: Cross multiply
    418,238.96x = 626,516.43 × 193,289.60
  4. Step 4: Simplify right side
    418,238.96x = 121,099,110,148.13
  5. Step 5: Solve for x
    x = 121,099,110,148.13/418,238.96
  6. Step 6: Final answer
    x = 289,545.26

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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.