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Finding the Fourth Proportional to 655,236.18, 904,076.37 and 368,651.70

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Solution

The fourth proportional to 655,236.18, 904,076.37 and 368,651.70 is: 508,655.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,236.18 : 904,076.37 = 368,651.70 : x
  2. Step 2: Convert to fraction form
    655,236.18/904,076.37 = 368,651.70/x
  3. Step 3: Cross multiply
    655,236.18x = 904,076.37 × 368,651.70
  4. Step 4: Simplify right side
    655,236.18x = 333,289,290,730.33
  5. Step 5: Solve for x
    x = 333,289,290,730.33/655,236.18
  6. Step 6: Final answer
    x = 508,655.20

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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.