Home / 414,314.55-619,995.60-287,359.20

Finding the Fourth Proportional to 414,314.55, 619,995.60 and 287,359.20

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Solution

The fourth proportional to 414,314.55, 619,995.60 and 287,359.20 is: 430,014.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,314.55 : 619,995.60 = 287,359.20 : x
  2. Step 2: Convert to fraction form
    414,314.55/619,995.60 = 287,359.20/x
  3. Step 3: Cross multiply
    414,314.55x = 619,995.60 × 287,359.20
  4. Step 4: Simplify right side
    414,314.55x = 178,161,439,619.52
  5. Step 5: Solve for x
    x = 178,161,439,619.52/414,314.55
  6. Step 6: Final answer
    x = 430,014.92

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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.