Home / 547,808.20-821,856.30-173,830.60

Finding the Fourth Proportional to 547,808.20, 821,856.30 and 173,830.60

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Solution

The fourth proportional to 547,808.20, 821,856.30 and 173,830.60 is: 260,791.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,808.20 : 821,856.30 = 173,830.60 : x
  2. Step 2: Convert to fraction form
    547,808.20/821,856.30 = 173,830.60/x
  3. Step 3: Cross multiply
    547,808.20x = 821,856.30 × 173,830.60
  4. Step 4: Simplify right side
    547,808.20x = 142,863,773,742.78
  5. Step 5: Solve for x
    x = 142,863,773,742.78/547,808.20
  6. Step 6: Final answer
    x = 260,791.59

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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.