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Finding the Fourth Proportional to 573,172.96, 858,944.69 and 422,226.22

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Solution

The fourth proportional to 573,172.96, 858,944.69 and 422,226.22 is: 632,739.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,172.96 : 858,944.69 = 422,226.22 : x
  2. Step 2: Convert to fraction form
    573,172.96/858,944.69 = 422,226.22/x
  3. Step 3: Cross multiply
    573,172.96x = 858,944.69 × 422,226.22
  4. Step 4: Simplify right side
    573,172.96x = 362,668,969,647.77
  5. Step 5: Solve for x
    x = 362,668,969,647.77/573,172.96
  6. Step 6: Final answer
    x = 632,739.15

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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.