Home / 809,566.40-1,215,127.20-410,657.60

Finding the Fourth Proportional to 809,566.40, 1,215,127.20 and 410,657.60

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Solution

The fourth proportional to 809,566.40, 1,215,127.20 and 410,657.60 is: 616,380.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,566.40 : 1,215,127.20 = 410,657.60 : x
  2. Step 2: Convert to fraction form
    809,566.40/1,215,127.20 = 410,657.60/x
  3. Step 3: Cross multiply
    809,566.40x = 1,215,127.20 × 410,657.60
  4. Step 4: Simplify right side
    809,566.40x = 499,001,219,646.72
  5. Step 5: Solve for x
    x = 499,001,219,646.72/809,566.40
  6. Step 6: Final answer
    x = 616,380.84

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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.