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Finding the Fourth Proportional to 916,992.42, 1,373,699.22 and 600,489.78

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Solution

The fourth proportional to 916,992.42, 1,373,699.22 and 600,489.78 is: 899,562.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,992.42 : 1,373,699.22 = 600,489.78 : x
  2. Step 2: Convert to fraction form
    916,992.42/1,373,699.22 = 600,489.78/x
  3. Step 3: Cross multiply
    916,992.42x = 1,373,699.22 × 600,489.78
  4. Step 4: Simplify right side
    916,992.42x = 824,892,342,403.97
  5. Step 5: Solve for x
    x = 824,892,342,403.97/916,992.42
  6. Step 6: Final answer
    x = 899,562.88

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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.