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Finding the Fourth Proportional to 479,691.44, 661,975.17 and 264,831.92

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Solution

The fourth proportional to 479,691.44, 661,975.17 and 264,831.92 is: 365,468.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,691.44 : 661,975.17 = 264,831.92 : x
  2. Step 2: Convert to fraction form
    479,691.44/661,975.17 = 264,831.92/x
  3. Step 3: Cross multiply
    479,691.44x = 661,975.17 × 264,831.92
  4. Step 4: Simplify right side
    479,691.44x = 175,312,155,263.43
  5. Step 5: Solve for x
    x = 175,312,155,263.43/479,691.44
  6. Step 6: Final answer
    x = 365,468.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.