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Finding the Fourth Proportional to 473,660.64, 653,380.56 and 303,703.20

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Solution

The fourth proportional to 473,660.64, 653,380.56 and 303,703.20 is: 418,936.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    473,660.64 : 653,380.56 = 303,703.20 : x
  2. Step 2: Convert to fraction form
    473,660.64/653,380.56 = 303,703.20/x
  3. Step 3: Cross multiply
    473,660.64x = 653,380.56 × 303,703.20
  4. Step 4: Simplify right side
    473,660.64x = 198,433,766,889.79
  5. Step 5: Solve for x
    x = 198,433,766,889.79/473,660.64
  6. Step 6: Final answer
    x = 418,936.58

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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.