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Finding the Fourth Proportional to 575,338.08, 793,993.44 and 320,691.12

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Solution

The fourth proportional to 575,338.08, 793,993.44 and 320,691.12 is: 442,568.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,338.08 : 793,993.44 = 320,691.12 : x
  2. Step 2: Convert to fraction form
    575,338.08/793,993.44 = 320,691.12/x
  3. Step 3: Cross multiply
    575,338.08x = 793,993.44 × 320,691.12
  4. Step 4: Simplify right side
    575,338.08x = 254,626,645,546.25
  5. Step 5: Solve for x
    x = 254,626,645,546.25/575,338.08
  6. Step 6: Final answer
    x = 442,568.73

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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.