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Finding the Fourth Proportional to 484,889.20, 668,966.17 and 484,141.57

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Solution

The fourth proportional to 484,889.20, 668,966.17 and 484,141.57 is: 667,934.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,889.20 : 668,966.17 = 484,141.57 : x
  2. Step 2: Convert to fraction form
    484,889.20/668,966.17 = 484,141.57/x
  3. Step 3: Cross multiply
    484,889.20x = 668,966.17 × 484,141.57
  4. Step 4: Simplify right side
    484,889.20x = 323,874,331,820.69
  5. Step 5: Solve for x
    x = 323,874,331,820.69/484,889.20
  6. Step 6: Final answer
    x = 667,934.72

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1.5x scale

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.