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Finding the Fourth Proportional to 479,161.37, 718,031.97 and 194,505.53

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Solution

The fourth proportional to 479,161.37, 718,031.97 and 194,505.53 is: 291,470.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,161.37 : 718,031.97 = 194,505.53 : x
  2. Step 2: Convert to fraction form
    479,161.37/718,031.97 = 194,505.53/x
  3. Step 3: Cross multiply
    479,161.37x = 718,031.97 × 194,505.53
  4. Step 4: Simplify right side
    479,161.37x = 139,661,188,881.79
  5. Step 5: Solve for x
    x = 139,661,188,881.79/479,161.37
  6. Step 6: Final answer
    x = 291,470.05

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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.