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Finding the Fourth Proportional to 479,249.10, 718,873.65 and 476,138.70

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Solution

The fourth proportional to 479,249.10, 718,873.65 and 476,138.70 is: 714,208.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,249.10 : 718,873.65 = 476,138.70 : x
  2. Step 2: Convert to fraction form
    479,249.10/718,873.65 = 476,138.70/x
  3. Step 3: Cross multiply
    479,249.10x = 718,873.65 × 476,138.70
  4. Step 4: Simplify right side
    479,249.10x = 342,283,565,175.26
  5. Step 5: Solve for x
    x = 342,283,565,175.26/479,249.10
  6. Step 6: Final answer
    x = 714,208.05

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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.