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Finding the Fourth Proportional to 526,793.40, 789,995.70 and 260,465.40

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Solution

The fourth proportional to 526,793.40, 789,995.70 and 260,465.40 is: 390,601.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,793.40 : 789,995.70 = 260,465.40 : x
  2. Step 2: Convert to fraction form
    526,793.40/789,995.70 = 260,465.40/x
  3. Step 3: Cross multiply
    526,793.40x = 789,995.70 × 260,465.40
  4. Step 4: Simplify right side
    526,793.40x = 205,766,545,998.78
  5. Step 5: Solve for x
    x = 205,766,545,998.78/526,793.40
  6. Step 6: Final answer
    x = 390,601.98

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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.