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Finding the Fourth Proportional to 367,906.80, 551,860.20 and 190,468.20

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Solution

The fourth proportional to 367,906.80, 551,860.20 and 190,468.20 is: 285,702.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,906.80 : 551,860.20 = 190,468.20 : x
  2. Step 2: Convert to fraction form
    367,906.80/551,860.20 = 190,468.20/x
  3. Step 3: Cross multiply
    367,906.80x = 551,860.20 × 190,468.20
  4. Step 4: Simplify right side
    367,906.80x = 105,111,818,945.64
  5. Step 5: Solve for x
    x = 105,111,818,945.64/367,906.80
  6. Step 6: Final answer
    x = 285,702.30

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1.5x scale

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.