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Finding the Fourth Proportional to 484,990.83, 669,308.09 and 270,130.95

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Solution

The fourth proportional to 484,990.83, 669,308.09 and 270,130.95 is: 372,792.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,990.83 : 669,308.09 = 270,130.95 : x
  2. Step 2: Convert to fraction form
    484,990.83/669,308.09 = 270,130.95/x
  3. Step 3: Cross multiply
    484,990.83x = 669,308.09 × 270,130.95
  4. Step 4: Simplify right side
    484,990.83x = 180,800,828,843.73
  5. Step 5: Solve for x
    x = 180,800,828,843.73/484,990.83
  6. Step 6: Final answer
    x = 372,792.26

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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.