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Finding the Fourth Proportional to 662,843.61, 914,433.17 and 447,905.25

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Solution

The fourth proportional to 662,843.61, 914,433.17 and 447,905.25 is: 617,912.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,843.61 : 914,433.17 = 447,905.25 : x
  2. Step 2: Convert to fraction form
    662,843.61/914,433.17 = 447,905.25/x
  3. Step 3: Cross multiply
    662,843.61x = 914,433.17 × 447,905.25
  4. Step 4: Simplify right side
    662,843.61x = 409,579,415,377.62
  5. Step 5: Solve for x
    x = 409,579,415,377.62/662,843.61
  6. Step 6: Final answer
    x = 617,912.60

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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.