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Finding the Fourth Proportional to 965,289.80, 1,446,509.10 and 699,609.80

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Solution

The fourth proportional to 965,289.80, 1,446,509.10 and 699,609.80 is: 1,048,381.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    965,289.80 : 1,446,509.10 = 699,609.80 : x
  2. Step 2: Convert to fraction form
    965,289.80/1,446,509.10 = 699,609.80/x
  3. Step 3: Cross multiply
    965,289.80x = 1,446,509.10 × 699,609.80
  4. Step 4: Simplify right side
    965,289.80x = 1,011,991,942,149.18
  5. Step 5: Solve for x
    x = 1,011,991,942,149.18/965,289.80
  6. Step 6: Final answer
    x = 1,048,381.47

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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.