Home / 437,529.20-656,293.80-279,935.60

Finding the Fourth Proportional to 437,529.20, 656,293.80 and 279,935.60

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Solution

The fourth proportional to 437,529.20, 656,293.80 and 279,935.60 is: 419,903.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,529.20 : 656,293.80 = 279,935.60 : x
  2. Step 2: Convert to fraction form
    437,529.20/656,293.80 = 279,935.60/x
  3. Step 3: Cross multiply
    437,529.20x = 656,293.80 × 279,935.60
  4. Step 4: Simplify right side
    437,529.20x = 183,719,998,679.28
  5. Step 5: Solve for x
    x = 183,719,998,679.28/437,529.20
  6. Step 6: Final answer
    x = 419,903.40

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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.