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Finding the Fourth Proportional to 333,778.20, 500,811.30 and 193,656.60

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Solution

The fourth proportional to 333,778.20, 500,811.30 and 193,656.60 is: 290,568.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    333,778.20 : 500,811.30 = 193,656.60 : x
  2. Step 2: Convert to fraction form
    333,778.20/500,811.30 = 193,656.60/x
  3. Step 3: Cross multiply
    333,778.20x = 500,811.30 × 193,656.60
  4. Step 4: Simplify right side
    333,778.20x = 96,985,413,599.58
  5. Step 5: Solve for x
    x = 96,985,413,599.58/333,778.20
  6. Step 6: Final answer
    x = 290,568.45

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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.