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Finding the Fourth Proportional to 1,296,747.82, 1,944,949.45 and 385,913.96

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Solution

The fourth proportional to 1,296,747.82, 1,944,949.45 and 385,913.96 is: 578,819.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,296,747.82 : 1,944,949.45 = 385,913.96 : x
  2. Step 2: Convert to fraction form
    1,296,747.82/1,944,949.45 = 385,913.96/x
  3. Step 3: Cross multiply
    1,296,747.82x = 1,944,949.45 × 385,913.96
  4. Step 4: Simplify right side
    1,296,747.82x = 750,583,144,249.32
  5. Step 5: Solve for x
    x = 750,583,144,249.32/1,296,747.82
  6. Step 6: Final answer
    x = 578,819.67

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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.