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Finding the Fourth Proportional to 497,686.80, 746,530.20 and 329,725.20

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Solution

The fourth proportional to 497,686.80, 746,530.20 and 329,725.20 is: 494,587.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,686.80 : 746,530.20 = 329,725.20 : x
  2. Step 2: Convert to fraction form
    497,686.80/746,530.20 = 329,725.20/x
  3. Step 3: Cross multiply
    497,686.80x = 746,530.20 × 329,725.20
  4. Step 4: Simplify right side
    497,686.80x = 246,149,819,501.04
  5. Step 5: Solve for x
    x = 246,149,819,501.04/497,686.80
  6. Step 6: Final answer
    x = 494,587.80

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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.