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Finding the Fourth Proportional to 479,144.11, 718,006.13 and 194,488.29

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Solution

The fourth proportional to 479,144.11, 718,006.13 and 194,488.29 is: 291,444.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,144.11 : 718,006.13 = 194,488.29 : x
  2. Step 2: Convert to fraction form
    479,144.11/718,006.13 = 194,488.29/x
  3. Step 3: Cross multiply
    479,144.11x = 718,006.13 × 194,488.29
  4. Step 4: Simplify right side
    479,144.11x = 139,643,780,843.19
  5. Step 5: Solve for x
    x = 139,643,780,843.19/479,144.11
  6. Step 6: Final answer
    x = 291,444.22

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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.