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Finding the Fourth Proportional to 499,997.79, 750,070.44 and 144,965.70

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Solution

The fourth proportional to 499,997.79, 750,070.44 and 144,965.70 is: 217,469.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,997.79 : 750,070.44 = 144,965.70 : x
  2. Step 2: Convert to fraction form
    499,997.79/750,070.44 = 144,965.70/x
  3. Step 3: Cross multiply
    499,997.79x = 750,070.44 × 144,965.70
  4. Step 4: Simplify right side
    499,997.79x = 108,734,486,383.91
  5. Step 5: Solve for x
    x = 108,734,486,383.91/499,997.79
  6. Step 6: Final answer
    x = 217,469.93

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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.