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Finding the Fourth Proportional to 617,646.82, 926,629.94 and 361,695.54

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Solution

The fourth proportional to 617,646.82, 926,629.94 and 361,695.54 is: 542,636.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,646.82 : 926,629.94 = 361,695.54 : x
  2. Step 2: Convert to fraction form
    617,646.82/926,629.94 = 361,695.54/x
  3. Step 3: Cross multiply
    617,646.82x = 926,629.94 × 361,695.54
  4. Step 4: Simplify right side
    617,646.82x = 335,157,916,528.47
  5. Step 5: Solve for x
    x = 335,157,916,528.47/617,646.82
  6. Step 6: Final answer
    x = 542,636.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.