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Finding the Fourth Proportional to 602,640.76, 831,654.46 and 330,733.95

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Solution

The fourth proportional to 602,640.76, 831,654.46 and 330,733.95 is: 456,418.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    602,640.76 : 831,654.46 = 330,733.95 : x
  2. Step 2: Convert to fraction form
    602,640.76/831,654.46 = 330,733.95/x
  3. Step 3: Cross multiply
    602,640.76x = 831,654.46 × 330,733.95
  4. Step 4: Simplify right side
    602,640.76x = 275,056,364,703.31
  5. Step 5: Solve for x
    x = 275,056,364,703.31/602,640.76
  6. Step 6: Final answer
    x = 456,418.46

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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.