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Finding the Fourth Proportional to 683,725.88, 943,541.78 and 381,919.88

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Solution

The fourth proportional to 683,725.88, 943,541.78 and 381,919.88 is: 527,049.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,725.88 : 943,541.78 = 381,919.88 : x
  2. Step 2: Convert to fraction form
    683,725.88/943,541.78 = 381,919.88/x
  3. Step 3: Cross multiply
    683,725.88x = 943,541.78 × 381,919.88
  4. Step 4: Simplify right side
    683,725.88x = 360,357,356,765.28
  5. Step 5: Solve for x
    x = 360,357,356,765.28/683,725.88
  6. Step 6: Final answer
    x = 527,049.47

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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.