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Finding the Fourth Proportional to 655,349.76, 904,469.64 and 368,926.16

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Solution

The fourth proportional to 655,349.76, 904,469.64 and 368,926.16 is: 509,167.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,349.76 : 904,469.64 = 368,926.16 : x
  2. Step 2: Convert to fraction form
    655,349.76/904,469.64 = 368,926.16/x
  3. Step 3: Cross multiply
    655,349.76x = 904,469.64 × 368,926.16
  4. Step 4: Simplify right side
    655,349.76x = 333,682,511,121.78
  5. Step 5: Solve for x
    x = 333,682,511,121.78/655,349.76
  6. Step 6: Final answer
    x = 509,167.06

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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.