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Finding the Fourth Proportional to 484,892.60, 669,212.89 and 293,881.64

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Solution

The fourth proportional to 484,892.60, 669,212.89 and 293,881.64 is: 405,593.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,892.60 : 669,212.89 = 293,881.64 : x
  2. Step 2: Convert to fraction form
    484,892.60/669,212.89 = 293,881.64/x
  3. Step 3: Cross multiply
    484,892.60x = 669,212.89 × 293,881.64
  4. Step 4: Simplify right side
    484,892.60x = 196,669,377,541.57
  5. Step 5: Solve for x
    x = 196,669,377,541.57/484,892.60
  6. Step 6: Final answer
    x = 405,593.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.