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Finding the Fourth Proportional to 647,802.39, 893,968.29 and 361,340.82

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Solution

The fourth proportional to 647,802.39, 893,968.29 and 361,340.82 is: 498,650.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,802.39 : 893,968.29 = 361,340.82 : x
  2. Step 2: Convert to fraction form
    647,802.39/893,968.29 = 361,340.82/x
  3. Step 3: Cross multiply
    647,802.39x = 893,968.29 × 361,340.82
  4. Step 4: Simplify right side
    647,802.39x = 323,027,234,962.60
  5. Step 5: Solve for x
    x = 323,027,234,962.60/647,802.39
  6. Step 6: Final answer
    x = 498,650.88

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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.