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Finding the Fourth Proportional to 606,412.92, 909,663.12 and 185,634.12

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Solution

The fourth proportional to 606,412.92, 909,663.12 and 185,634.12 is: 278,464.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,412.92 : 909,663.12 = 185,634.12 : x
  2. Step 2: Convert to fraction form
    606,412.92/909,663.12 = 185,634.12/x
  3. Step 3: Cross multiply
    606,412.92x = 909,663.12 × 185,634.12
  4. Step 4: Simplify right side
    606,412.92x = 168,864,512,777.65
  5. Step 5: Solve for x
    x = 168,864,512,777.65/606,412.92
  6. Step 6: Final answer
    x = 278,464.57

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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.