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Finding the Fourth Proportional to 572,440.89, 858,760.31 and 193,364.39

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Solution

The fourth proportional to 572,440.89, 858,760.31 and 193,364.39 is: 290,080.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,440.89 : 858,760.31 = 193,364.39 : x
  2. Step 2: Convert to fraction form
    572,440.89/858,760.31 = 193,364.39/x
  3. Step 3: Cross multiply
    572,440.89x = 858,760.31 × 193,364.39
  4. Step 4: Simplify right side
    572,440.89x = 166,053,659,326.41
  5. Step 5: Solve for x
    x = 166,053,659,326.41/572,440.89
  6. Step 6: Final answer
    x = 290,080.01

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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.