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Finding the Fourth Proportional to 484,934.97, 669,231 and 270,075

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Solution

The fourth proportional to 484,934.97, 669,231 and 270,075 is: 372,715.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,934.97 : 669,231 = 270,075 : x
  2. Step 2: Convert to fraction form
    484,934.97/669,231 = 270,075/x
  3. Step 3: Cross multiply
    484,934.97x = 669,231 × 270,075
  4. Step 4: Simplify right side
    484,934.97x = 180,742,562,325
  5. Step 5: Solve for x
    x = 180,742,562,325/484,934.97
  6. Step 6: Final answer
    x = 372,715.05

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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.