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Finding the Fourth Proportional to 591,991.40, 887,987.10 and 414,698.60

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Solution

The fourth proportional to 591,991.40, 887,987.10 and 414,698.60 is: 622,047.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,991.40 : 887,987.10 = 414,698.60 : x
  2. Step 2: Convert to fraction form
    591,991.40/887,987.10 = 414,698.60/x
  3. Step 3: Cross multiply
    591,991.40x = 887,987.10 × 414,698.60
  4. Step 4: Simplify right side
    591,991.40x = 368,247,007,188.06
  5. Step 5: Solve for x
    x = 368,247,007,188.06/591,991.40
  6. Step 6: Final answer
    x = 622,047.90

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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.