Home / 639,921.27-883,086.11-349,533.02

Finding the Fourth Proportional to 639,921.27, 883,086.11 and 349,533.02

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Solution

The fourth proportional to 639,921.27, 883,086.11 and 349,533.02 is: 482,352.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,921.27 : 883,086.11 = 349,533.02 : x
  2. Step 2: Convert to fraction form
    639,921.27/883,086.11 = 349,533.02/x
  3. Step 3: Cross multiply
    639,921.27x = 883,086.11 × 349,533.02
  4. Step 4: Simplify right side
    639,921.27x = 308,667,756,719.15
  5. Step 5: Solve for x
    x = 308,667,756,719.15/639,921.27
  6. Step 6: Final answer
    x = 482,352.70

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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.