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Finding the Fourth Proportional to 476,479.45, 715,015.23 and 296,917.30

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Solution

The fourth proportional to 476,479.45, 715,015.23 and 296,917.30 is: 445,560.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,479.45 : 715,015.23 = 296,917.30 : x
  2. Step 2: Convert to fraction form
    476,479.45/715,015.23 = 296,917.30/x
  3. Step 3: Cross multiply
    476,479.45x = 715,015.23 × 296,917.30
  4. Step 4: Simplify right side
    476,479.45x = 212,300,391,550.48
  5. Step 5: Solve for x
    x = 212,300,391,550.48/476,479.45
  6. Step 6: Final answer
    x = 445,560.44

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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.