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Finding the Fourth Proportional to 602,641.05, 831,654.86 and 330,734.24

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Solution

The fourth proportional to 602,641.05, 831,654.86 and 330,734.24 is: 456,418.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    602,641.05 : 831,654.86 = 330,734.24 : x
  2. Step 2: Convert to fraction form
    602,641.05/831,654.86 = 330,734.24/x
  3. Step 3: Cross multiply
    602,641.05x = 831,654.86 × 330,734.24
  4. Step 4: Simplify right side
    602,641.05x = 275,056,736,410.74
  5. Step 5: Solve for x
    x = 275,056,736,410.74/602,641.05
  6. Step 6: Final answer
    x = 456,418.85

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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.