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Finding the Fourth Proportional to 447,530.31, 617,811.84 and 350,561.48

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Solution

The fourth proportional to 447,530.31, 617,811.84 and 350,561.48 is: 483,947.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,530.31 : 617,811.84 = 350,561.48 : x
  2. Step 2: Convert to fraction form
    447,530.31/617,811.84 = 350,561.48/x
  3. Step 3: Cross multiply
    447,530.31x = 617,811.84 × 350,561.48
  4. Step 4: Simplify right side
    447,530.31x = 216,581,029,902.86
  5. Step 5: Solve for x
    x = 216,581,029,902.86/447,530.31
  6. Step 6: Final answer
    x = 483,947.18

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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.