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Finding the Fourth Proportional to 529,211.68, 792,784.06 and 422,816.96

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Solution

The fourth proportional to 529,211.68, 792,784.06 and 422,816.96 is: 633,399.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,211.68 : 792,784.06 = 422,816.96 : x
  2. Step 2: Convert to fraction form
    529,211.68/792,784.06 = 422,816.96/x
  3. Step 3: Cross multiply
    529,211.68x = 792,784.06 × 422,816.96
  4. Step 4: Simplify right side
    529,211.68x = 335,202,547,110.58
  5. Step 5: Solve for x
    x = 335,202,547,110.58/529,211.68
  6. Step 6: Final answer
    x = 633,399.76

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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.