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Finding the Fourth Proportional to 275,277.83, 412,637.90 and 186,540.30

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Solution

The fourth proportional to 275,277.83, 412,637.90 and 186,540.30 is: 279,621.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,277.83 : 412,637.90 = 186,540.30 : x
  2. Step 2: Convert to fraction form
    275,277.83/412,637.90 = 186,540.30/x
  3. Step 3: Cross multiply
    275,277.83x = 412,637.90 × 186,540.30
  4. Step 4: Simplify right side
    275,277.83x = 76,973,596,724.67
  5. Step 5: Solve for x
    x = 76,973,596,724.67/275,277.83
  6. Step 6: Final answer
    x = 279,621.49

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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.