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Finding the Fourth Proportional to 587,808.92, 809,736.54 and 426,189.08

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Solution

The fourth proportional to 587,808.92, 809,736.54 and 426,189.08 is: 587,097.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,808.92 : 809,736.54 = 426,189.08 : x
  2. Step 2: Convert to fraction form
    587,808.92/809,736.54 = 426,189.08/x
  3. Step 3: Cross multiply
    587,808.92x = 809,736.54 × 426,189.08
  4. Step 4: Simplify right side
    587,808.92x = 345,100,871,024.98
  5. Step 5: Solve for x
    x = 345,100,871,024.98/587,808.92
  6. Step 6: Final answer
    x = 587,097.03

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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.