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Finding the Fourth Proportional to 463,638.80, 695,458.20 and 351,664.40

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Solution

The fourth proportional to 463,638.80, 695,458.20 and 351,664.40 is: 527,496.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,638.80 : 695,458.20 = 351,664.40 : x
  2. Step 2: Convert to fraction form
    463,638.80/695,458.20 = 351,664.40/x
  3. Step 3: Cross multiply
    463,638.80x = 695,458.20 × 351,664.40
  4. Step 4: Simplify right side
    463,638.80x = 244,567,890,628.08
  5. Step 5: Solve for x
    x = 244,567,890,628.08/463,638.80
  6. Step 6: Final answer
    x = 527,496.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.