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Finding the Fourth Proportional to 655,213.94, 904,045.64 and 368,629.46

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Solution

The fourth proportional to 655,213.94, 904,045.64 and 368,629.46 is: 508,624.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,213.94 : 904,045.64 = 368,629.46 : x
  2. Step 2: Convert to fraction form
    655,213.94/904,045.64 = 368,629.46/x
  3. Step 3: Cross multiply
    655,213.94x = 904,045.64 × 368,629.46
  4. Step 4: Simplify right side
    655,213.94x = 333,257,859,270.24
  5. Step 5: Solve for x
    x = 333,257,859,270.24/655,213.94
  6. Step 6: Final answer
    x = 508,624.49

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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.