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Finding the Fourth Proportional to 270,178.74, 405,122.31 and 191,446.74

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Solution

The fourth proportional to 270,178.74, 405,122.31 and 191,446.74 is: 287,066.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,178.74 : 405,122.31 = 191,446.74 : x
  2. Step 2: Convert to fraction form
    270,178.74/405,122.31 = 191,446.74/x
  3. Step 3: Cross multiply
    270,178.74x = 405,122.31 × 191,446.74
  4. Step 4: Simplify right side
    270,178.74x = 77,559,345,550.77
  5. Step 5: Solve for x
    x = 77,559,345,550.77/270,178.74
  6. Step 6: Final answer
    x = 287,066.80

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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.