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Finding the Fourth Proportional to 619,341.84, 854,489.88 and 361,160.28

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Solution

The fourth proportional to 619,341.84, 854,489.88 and 361,160.28 is: 498,283.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,341.84 : 854,489.88 = 361,160.28 : x
  2. Step 2: Convert to fraction form
    619,341.84/854,489.88 = 361,160.28/x
  3. Step 3: Cross multiply
    619,341.84x = 854,489.88 × 361,160.28
  4. Step 4: Simplify right side
    619,341.84x = 308,607,804,317.97
  5. Step 5: Solve for x
    x = 308,607,804,317.97/619,341.84
  6. Step 6: Final answer
    x = 498,283.48

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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.