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Finding the Fourth Proportional to 655,346.54, 904,320.64 and 364,936.17

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Solution

The fourth proportional to 655,346.54, 904,320.64 and 364,936.17 is: 503,579.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,346.54 : 904,320.64 = 364,936.17 : x
  2. Step 2: Convert to fraction form
    655,346.54/904,320.64 = 364,936.17/x
  3. Step 3: Cross multiply
    655,346.54x = 904,320.64 × 364,936.17
  4. Step 4: Simplify right side
    655,346.54x = 330,019,312,876.03
  5. Step 5: Solve for x
    x = 330,019,312,876.03/655,346.54
  6. Step 6: Final answer
    x = 503,579.85

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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.