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Finding the Fourth Proportional to 499,164.60, 748,472.70 and 245,887.80

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Solution

The fourth proportional to 499,164.60, 748,472.70 and 245,887.80 is: 368,696.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,164.60 : 748,472.70 = 245,887.80 : x
  2. Step 2: Convert to fraction form
    499,164.60/748,472.70 = 245,887.80/x
  3. Step 3: Cross multiply
    499,164.60x = 748,472.70 × 245,887.80
  4. Step 4: Simplify right side
    499,164.60x = 184,040,305,563.06
  5. Step 5: Solve for x
    x = 184,040,305,563.06/499,164.60
  6. Step 6: Final answer
    x = 368,696.63

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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.