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Finding the Fourth Proportional to 884,724.70, 1,325,337.45 and 821,739.10

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Solution

The fourth proportional to 884,724.70, 1,325,337.45 and 821,739.10 is: 1,230,983.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    884,724.70 : 1,325,337.45 = 821,739.10 : x
  2. Step 2: Convert to fraction form
    884,724.70/1,325,337.45 = 821,739.10/x
  3. Step 3: Cross multiply
    884,724.70x = 1,325,337.45 × 821,739.10
  4. Step 4: Simplify right side
    884,724.70x = 1,089,081,603,359.30
  5. Step 5: Solve for x
    x = 1,089,081,603,359.30/884,724.70
  6. Step 6: Final answer
    x = 1,230,983.61

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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.