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Finding the Fourth Proportional to 447,715.56, 617,833.08 and 266,385.84

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Solution

The fourth proportional to 447,715.56, 617,833.08 and 266,385.84 is: 367,603.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,715.56 : 617,833.08 = 266,385.84 : x
  2. Step 2: Convert to fraction form
    447,715.56/617,833.08 = 266,385.84/x
  3. Step 3: Cross multiply
    447,715.56x = 617,833.08 × 266,385.84
  4. Step 4: Simplify right side
    447,715.56x = 164,581,983,995.59
  5. Step 5: Solve for x
    x = 164,581,983,995.59/447,715.56
  6. Step 6: Final answer
    x = 367,603.90

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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.