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Finding the Fourth Proportional to 484,308.87, 668,329.47 and 266,497.17

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Solution

The fourth proportional to 484,308.87, 668,329.47 and 266,497.17 is: 367,756.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,308.87 : 668,329.47 = 266,497.17 : x
  2. Step 2: Convert to fraction form
    484,308.87/668,329.47 = 266,497.17/x
  3. Step 3: Cross multiply
    484,308.87x = 668,329.47 × 266,497.17
  4. Step 4: Simplify right side
    484,308.87x = 178,107,912,382.60
  5. Step 5: Solve for x
    x = 178,107,912,382.60/484,308.87
  6. Step 6: Final answer
    x = 367,756.87

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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.