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Finding the Fourth Proportional to 491,820.20, 737,730.30 and 484,447.40

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Solution

The fourth proportional to 491,820.20, 737,730.30 and 484,447.40 is: 726,671.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,820.20 : 737,730.30 = 484,447.40 : x
  2. Step 2: Convert to fraction form
    491,820.20/737,730.30 = 484,447.40/x
  3. Step 3: Cross multiply
    491,820.20x = 737,730.30 × 484,447.40
  4. Step 4: Simplify right side
    491,820.20x = 357,391,525,736.22
  5. Step 5: Solve for x
    x = 357,391,525,736.22/491,820.20
  6. Step 6: Final answer
    x = 726,671.10

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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.