Home / 809,715.60-1,214,573.40-526,280.40

Finding the Fourth Proportional to 809,715.60, 1,214,573.40 and 526,280.40

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Solution

The fourth proportional to 809,715.60, 1,214,573.40 and 526,280.40 is: 789,420.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,715.60 : 1,214,573.40 = 526,280.40 : x
  2. Step 2: Convert to fraction form
    809,715.60/1,214,573.40 = 526,280.40/x
  3. Step 3: Cross multiply
    809,715.60x = 1,214,573.40 × 526,280.40
  4. Step 4: Simplify right side
    809,715.60x = 639,206,174,781.36
  5. Step 5: Solve for x
    x = 639,206,174,781.36/809,715.60
  6. Step 6: Final answer
    x = 789,420.60

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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.