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Finding the Fourth Proportional to 384,940.30, 576,316.95 and 363,993.70

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Solution

The fourth proportional to 384,940.30, 576,316.95 and 363,993.70 is: 544,956.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,940.30 : 576,316.95 = 363,993.70 : x
  2. Step 2: Convert to fraction form
    384,940.30/576,316.95 = 363,993.70/x
  3. Step 3: Cross multiply
    384,940.30x = 576,316.95 × 363,993.70
  4. Step 4: Simplify right side
    384,940.30x = 209,775,739,003.22
  5. Step 5: Solve for x
    x = 209,775,739,003.22/384,940.30
  6. Step 6: Final answer
    x = 544,956.55

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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.