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Finding the Fourth Proportional to 363,903.80, 544,818.90 and 322,431.80

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Solution

The fourth proportional to 363,903.80, 544,818.90 and 322,431.80 is: 482,729.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,903.80 : 544,818.90 = 322,431.80 : x
  2. Step 2: Convert to fraction form
    363,903.80/544,818.90 = 322,431.80/x
  3. Step 3: Cross multiply
    363,903.80x = 544,818.90 × 322,431.80
  4. Step 4: Simplify right side
    363,903.80x = 175,666,938,601.02
  5. Step 5: Solve for x
    x = 175,666,938,601.02/363,903.80
  6. Step 6: Final answer
    x = 482,729.06

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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.