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Finding the Fourth Proportional to 447,156.68, 617,359.38 and 277,570.76

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Solution

The fourth proportional to 447,156.68, 617,359.38 and 277,570.76 is: 383,223.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,156.68 : 617,359.38 = 277,570.76 : x
  2. Step 2: Convert to fraction form
    447,156.68/617,359.38 = 277,570.76/x
  3. Step 3: Cross multiply
    447,156.68x = 617,359.38 × 277,570.76
  4. Step 4: Simplify right side
    447,156.68x = 171,360,912,299.73
  5. Step 5: Solve for x
    x = 171,360,912,299.73/447,156.68
  6. Step 6: Final answer
    x = 383,223.42

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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.