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Finding the Fourth Proportional to 576,428.28, 795,484.44 and 361,577.40

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Solution

The fourth proportional to 576,428.28, 795,484.44 and 361,577.40 is: 498,985.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,428.28 : 795,484.44 = 361,577.40 : x
  2. Step 2: Convert to fraction form
    576,428.28/795,484.44 = 361,577.40/x
  3. Step 3: Cross multiply
    576,428.28x = 795,484.44 × 361,577.40
  4. Step 4: Simplify right side
    576,428.28x = 287,629,195,555.66
  5. Step 5: Solve for x
    x = 287,629,195,555.66/576,428.28
  6. Step 6: Final answer
    x = 498,985.23

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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.