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Finding the Fourth Proportional to 3,269,867.42, 4,905,851.30 and 995,831.71

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Solution

The fourth proportional to 3,269,867.42, 4,905,851.30 and 995,831.71 is: 1,494,067.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,269,867.42 : 4,905,851.30 = 995,831.71 : x
  2. Step 2: Convert to fraction form
    3,269,867.42/4,905,851.30 = 995,831.71/x
  3. Step 3: Cross multiply
    3,269,867.42x = 4,905,851.30 × 995,831.71
  4. Step 4: Simplify right side
    3,269,867.42x = 4,885,402,259,576.31
  5. Step 5: Solve for x
    x = 4,885,402,259,576.31/3,269,867.42
  6. Step 6: Final answer
    x = 1,494,067.38

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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.