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Finding the Fourth Proportional to 303,246.80, 455,244.60 and 190,926.80

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Solution

The fourth proportional to 303,246.80, 455,244.60 and 190,926.80 is: 286,625.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,246.80 : 455,244.60 = 190,926.80 : x
  2. Step 2: Convert to fraction form
    303,246.80/455,244.60 = 190,926.80/x
  3. Step 3: Cross multiply
    303,246.80x = 455,244.60 × 190,926.80
  4. Step 4: Simplify right side
    303,246.80x = 86,918,394,695.28
  5. Step 5: Solve for x
    x = 86,918,394,695.28/303,246.80
  6. Step 6: Final answer
    x = 286,625.93

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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.