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Finding the Fourth Proportional to 658,379.52, 908,552.79 and 367,997.88

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Solution

The fourth proportional to 658,379.52, 908,552.79 and 367,997.88 is: 507,830.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,379.52 : 908,552.79 = 367,997.88 : x
  2. Step 2: Convert to fraction form
    658,379.52/908,552.79 = 367,997.88/x
  3. Step 3: Cross multiply
    658,379.52x = 908,552.79 × 367,997.88
  4. Step 4: Simplify right side
    658,379.52x = 334,345,500,588.09
  5. Step 5: Solve for x
    x = 334,345,500,588.09/658,379.52
  6. Step 6: Final answer
    x = 507,830.96

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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.