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Finding the Fourth Proportional to 574,597.56, 861,904.80 and 219,630.42

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Solution

The fourth proportional to 574,597.56, 861,904.80 and 219,630.42 is: 329,448.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,597.56 : 861,904.80 = 219,630.42 : x
  2. Step 2: Convert to fraction form
    574,597.56/861,904.80 = 219,630.42/x
  3. Step 3: Cross multiply
    574,597.56x = 861,904.80 × 219,630.42
  4. Step 4: Simplify right side
    574,597.56x = 189,300,513,224.02
  5. Step 5: Solve for x
    x = 189,300,513,224.02/574,597.56
  6. Step 6: Final answer
    x = 329,448.86

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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.