Home / 856,099.20-1,282,766.40-539,990.40

Finding the Fourth Proportional to 856,099.20, 1,282,766.40 and 539,990.40

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Solution

The fourth proportional to 856,099.20, 1,282,766.40 and 539,990.40 is: 809,113.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,099.20 : 1,282,766.40 = 539,990.40 : x
  2. Step 2: Convert to fraction form
    856,099.20/1,282,766.40 = 539,990.40/x
  3. Step 3: Cross multiply
    856,099.20x = 1,282,766.40 × 539,990.40
  4. Step 4: Simplify right side
    856,099.20x = 692,681,541,442.56
  5. Step 5: Solve for x
    x = 692,681,541,442.56/856,099.20
  6. Step 6: Final answer
    x = 809,113.64

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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.