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Finding the Fourth Proportional to 823,608.60, 1,233,007.20 and 587,412.60

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Solution

The fourth proportional to 823,608.60, 1,233,007.20 and 587,412.60 is: 879,403.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    823,608.60 : 1,233,007.20 = 587,412.60 : x
  2. Step 2: Convert to fraction form
    823,608.60/1,233,007.20 = 587,412.60/x
  3. Step 3: Cross multiply
    823,608.60x = 1,233,007.20 × 587,412.60
  4. Step 4: Simplify right side
    823,608.60x = 724,283,965,170.72
  5. Step 5: Solve for x
    x = 724,283,965,170.72/823,608.60
  6. Step 6: Final answer
    x = 879,403.11

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1.5x scale

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.