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Finding the Fourth Proportional to 602,689.54, 831,708.96 and 330,761.83

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Solution

The fourth proportional to 602,689.54, 831,708.96 and 330,761.83 is: 456,449.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    602,689.54 : 831,708.96 = 330,761.83 : x
  2. Step 2: Convert to fraction form
    602,689.54/831,708.96 = 330,761.83/x
  3. Step 3: Cross multiply
    602,689.54x = 831,708.96 × 330,761.83
  4. Step 4: Simplify right side
    602,689.54x = 275,097,577,637.00
  5. Step 5: Solve for x
    x = 275,097,577,637.00/602,689.54
  6. Step 6: Final answer
    x = 456,449.90

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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.