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Finding the Fourth Proportional to 606,873.86, 909,549.60 and 321,860.94

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Solution

The fourth proportional to 606,873.86, 909,549.60 and 321,860.94 is: 482,387.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,873.86 : 909,549.60 = 321,860.94 : x
  2. Step 2: Convert to fraction form
    606,873.86/909,549.60 = 321,860.94/x
  3. Step 3: Cross multiply
    606,873.86x = 909,549.60 × 321,860.94
  4. Step 4: Simplify right side
    606,873.86x = 292,748,489,232.62
  5. Step 5: Solve for x
    x = 292,748,489,232.62/606,873.86
  6. Step 6: Final answer
    x = 482,387.71

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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.