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Finding the Fourth Proportional to 602,622.24, 831,616.40 and 330,694.64

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Solution

The fourth proportional to 602,622.24, 831,616.40 and 330,694.64 is: 456,357.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    602,622.24 : 831,616.40 = 330,694.64 : x
  2. Step 2: Convert to fraction form
    602,622.24/831,616.40 = 330,694.64/x
  3. Step 3: Cross multiply
    602,622.24x = 831,616.40 × 330,694.64
  4. Step 4: Simplify right side
    602,622.24x = 275,011,086,016.10
  5. Step 5: Solve for x
    x = 275,011,086,016.10/602,622.24
  6. Step 6: Final answer
    x = 456,357.35

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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.