Home / 866,688.16-1,300,194.96-393,406.80

Finding the Fourth Proportional to 866,688.16, 1,300,194.96 and 393,406.80

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Solution

The fourth proportional to 866,688.16, 1,300,194.96 and 393,406.80 is: 590,184.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,688.16 : 1,300,194.96 = 393,406.80 : x
  2. Step 2: Convert to fraction form
    866,688.16/1,300,194.96 = 393,406.80/x
  3. Step 3: Cross multiply
    866,688.16x = 1,300,194.96 × 393,406.80
  4. Step 4: Simplify right side
    866,688.16x = 511,505,538,589.73
  5. Step 5: Solve for x
    x = 511,505,538,589.73/866,688.16
  6. Step 6: Final answer
    x = 590,184.06

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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.