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Finding the Fourth Proportional to 655,578.74, 904,578.59 and 365,183.07

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Solution

The fourth proportional to 655,578.74, 904,578.59 and 365,183.07 is: 503,885.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,578.74 : 904,578.59 = 365,183.07 : x
  2. Step 2: Convert to fraction form
    655,578.74/904,578.59 = 365,183.07/x
  3. Step 3: Cross multiply
    655,578.74x = 904,578.59 × 365,183.07
  4. Step 4: Simplify right side
    655,578.74x = 330,336,784,726.56
  5. Step 5: Solve for x
    x = 330,336,784,726.56/655,578.74
  6. Step 6: Final answer
    x = 503,885.75

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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.