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Finding the Fourth Proportional to 547,598.90, 821,321.55 and 173,659.70

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Solution

The fourth proportional to 547,598.90, 821,321.55 and 173,659.70 is: 260,465.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,598.90 : 821,321.55 = 173,659.70 : x
  2. Step 2: Convert to fraction form
    547,598.90/821,321.55 = 173,659.70/x
  3. Step 3: Cross multiply
    547,598.90x = 821,321.55 × 173,659.70
  4. Step 4: Simplify right side
    547,598.90x = 142,630,453,976.54
  5. Step 5: Solve for x
    x = 142,630,453,976.54/547,598.90
  6. Step 6: Final answer
    x = 260,465.19

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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.