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Finding the Fourth Proportional to 479,034.43, 660,380.85 and 376,883.00

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Solution

The fourth proportional to 479,034.43, 660,380.85 and 376,883.00 is: 519,558.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,034.43 : 660,380.85 = 376,883.00 : x
  2. Step 2: Convert to fraction form
    479,034.43/660,380.85 = 376,883.00/x
  3. Step 3: Cross multiply
    479,034.43x = 660,380.85 × 376,883.00
  4. Step 4: Simplify right side
    479,034.43x = 248,886,316,922.40
  5. Step 5: Solve for x
    x = 248,886,316,922.40/479,034.43
  6. Step 6: Final answer
    x = 519,558.31

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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.