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Finding the Fourth Proportional to 576,129.42, 794,939.90 and 331,066.80

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Solution

The fourth proportional to 576,129.42, 794,939.90 and 331,066.80 is: 456,803.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,129.42 : 794,939.90 = 331,066.80 : x
  2. Step 2: Convert to fraction form
    576,129.42/794,939.90 = 331,066.80/x
  3. Step 3: Cross multiply
    576,129.42x = 794,939.90 × 331,066.80
  4. Step 4: Simplify right side
    576,129.42x = 263,178,208,885.32
  5. Step 5: Solve for x
    x = 263,178,208,885.32/576,129.42
  6. Step 6: Final answer
    x = 456,803.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.