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Finding the Fourth Proportional to 655,225.17, 904,208.88 and 368,745.25

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Solution

The fourth proportional to 655,225.17, 904,208.88 and 368,745.25 is: 508,867.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,225.17 : 904,208.88 = 368,745.25 : x
  2. Step 2: Convert to fraction form
    655,225.17/904,208.88 = 368,745.25/x
  3. Step 3: Cross multiply
    655,225.17x = 904,208.88 × 368,745.25
  4. Step 4: Simplify right side
    655,225.17x = 333,422,729,507.82
  5. Step 5: Solve for x
    x = 333,422,729,507.82/655,225.17
  6. Step 6: Final answer
    x = 508,867.40

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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.