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Finding the Fourth Proportional to 526,519.80, 789,779.70 and 260,799.30

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Solution

The fourth proportional to 526,519.80, 789,779.70 and 260,799.30 is: 391,198.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,519.80 : 789,779.70 = 260,799.30 : x
  2. Step 2: Convert to fraction form
    526,519.80/789,779.70 = 260,799.30/x
  3. Step 3: Cross multiply
    526,519.80x = 789,779.70 × 260,799.30
  4. Step 4: Simplify right side
    526,519.80x = 205,973,992,914.21
  5. Step 5: Solve for x
    x = 205,973,992,914.21/526,519.80
  6. Step 6: Final answer
    x = 391,198.95

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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.