Home / 566,268.28-781,450.35-311,619.47

Finding the Fourth Proportional to 566,268.28, 781,450.35 and 311,619.47

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Solution

The fourth proportional to 566,268.28, 781,450.35 and 311,619.47 is: 430,034.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,268.28 : 781,450.35 = 311,619.47 : x
  2. Step 2: Convert to fraction form
    566,268.28/781,450.35 = 311,619.47/x
  3. Step 3: Cross multiply
    566,268.28x = 781,450.35 × 311,619.47
  4. Step 4: Simplify right side
    566,268.28x = 243,515,139,991.06
  5. Step 5: Solve for x
    x = 243,515,139,991.06/566,268.28
  6. Step 6: Final answer
    x = 430,034.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.