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Finding the Fourth Proportional to 725,161.80, 1,000,866.44 and 463,349.64

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Solution

The fourth proportional to 725,161.80, 1,000,866.44 and 463,349.64 is: 639,513.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,161.80 : 1,000,866.44 = 463,349.64 : x
  2. Step 2: Convert to fraction form
    725,161.80/1,000,866.44 = 463,349.64/x
  3. Step 3: Cross multiply
    725,161.80x = 1,000,866.44 × 463,349.64
  4. Step 4: Simplify right side
    725,161.80x = 463,751,104,662.08
  5. Step 5: Solve for x
    x = 463,751,104,662.08/725,161.80
  6. Step 6: Final answer
    x = 639,513.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.