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Finding the Fourth Proportional to 585,778.56, 878,771.52 and 221,032.32

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Solution

The fourth proportional to 585,778.56, 878,771.52 and 221,032.32 is: 331,587.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,778.56 : 878,771.52 = 221,032.32 : x
  2. Step 2: Convert to fraction form
    585,778.56/878,771.52 = 221,032.32/x
  3. Step 3: Cross multiply
    585,778.56x = 878,771.52 × 221,032.32
  4. Step 4: Simplify right side
    585,778.56x = 194,236,907,815.53
  5. Step 5: Solve for x
    x = 194,236,907,815.53/585,778.56
  6. Step 6: Final answer
    x = 331,587.60

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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.