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Finding the Fourth Proportional to 602,508.12, 831,433.14 and 330,569.88

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Solution

The fourth proportional to 602,508.12, 831,433.14 and 330,569.88 is: 456,171.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    602,508.12 : 831,433.14 = 330,569.88 : x
  2. Step 2: Convert to fraction form
    602,508.12/831,433.14 = 330,569.88/x
  3. Step 3: Cross multiply
    602,508.12x = 831,433.14 × 330,569.88
  4. Step 4: Simplify right side
    602,508.12x = 274,846,753,317.82
  5. Step 5: Solve for x
    x = 274,846,753,317.82/602,508.12
  6. Step 6: Final answer
    x = 456,171.04

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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.