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Finding the Fourth Proportional to 613,044.45, 919,699.04 and 186,613.62

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Solution

The fourth proportional to 613,044.45, 919,699.04 and 186,613.62 is: 279,960.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,044.45 : 919,699.04 = 186,613.62 : x
  2. Step 2: Convert to fraction form
    613,044.45/919,699.04 = 186,613.62/x
  3. Step 3: Cross multiply
    613,044.45x = 919,699.04 × 186,613.62
  4. Step 4: Simplify right side
    613,044.45x = 171,628,366,231.86
  5. Step 5: Solve for x
    x = 171,628,366,231.86/613,044.45
  6. Step 6: Final answer
    x = 279,960.72

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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.