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Finding the Fourth Proportional to 494,691.30, 683,314.65 and 365,891.58

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Solution

The fourth proportional to 494,691.30, 683,314.65 and 365,891.58 is: 505,404.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,691.30 : 683,314.65 = 365,891.58 : x
  2. Step 2: Convert to fraction form
    494,691.30/683,314.65 = 365,891.58/x
  3. Step 3: Cross multiply
    494,691.30x = 683,314.65 × 365,891.58
  4. Step 4: Simplify right side
    494,691.30x = 250,019,076,925.65
  5. Step 5: Solve for x
    x = 250,019,076,925.65/494,691.30
  6. Step 6: Final answer
    x = 505,404.23

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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.