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Finding the Fourth Proportional to 447,285.57, 671,074.17 and 210,652.17

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Solution

The fourth proportional to 447,285.57, 671,074.17 and 210,652.17 is: 316,046.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,285.57 : 671,074.17 = 210,652.17 : x
  2. Step 2: Convert to fraction form
    447,285.57/671,074.17 = 210,652.17/x
  3. Step 3: Cross multiply
    447,285.57x = 671,074.17 × 210,652.17
  4. Step 4: Simplify right side
    447,285.57x = 141,363,230,141.45
  5. Step 5: Solve for x
    x = 141,363,230,141.45/447,285.57
  6. Step 6: Final answer
    x = 316,046.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.