Home / 547,799.10-821,698.65-173,859.90

Finding the Fourth Proportional to 547,799.10, 821,698.65 and 173,859.90

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Solution

The fourth proportional to 547,799.10, 821,698.65 and 173,859.90 is: 260,789.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,799.10 : 821,698.65 = 173,859.90 : x
  2. Step 2: Convert to fraction form
    547,799.10/821,698.65 = 173,859.90/x
  3. Step 3: Cross multiply
    547,799.10x = 821,698.65 × 173,859.90
  4. Step 4: Simplify right side
    547,799.10x = 142,860,445,119.14
  5. Step 5: Solve for x
    x = 142,860,445,119.14/547,799.10
  6. Step 6: Final answer
    x = 260,789.85

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Double scale
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Similar ratio
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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.