Home / 547,813.20-821,863.80-173,835.60

Finding the Fourth Proportional to 547,813.20, 821,863.80 and 173,835.60

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Solution

The fourth proportional to 547,813.20, 821,863.80 and 173,835.60 is: 260,799.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,813.20 : 821,863.80 = 173,835.60 : x
  2. Step 2: Convert to fraction form
    547,813.20/821,863.80 = 173,835.60/x
  3. Step 3: Cross multiply
    547,813.20x = 821,863.80 × 173,835.60
  4. Step 4: Simplify right side
    547,813.20x = 142,869,186,791.28
  5. Step 5: Solve for x
    x = 142,869,186,791.28/547,813.20
  6. Step 6: Final answer
    x = 260,799.10

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1.5x scale

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.