Home / 386,004.28-532,685.56-216,239.64

Finding the Fourth Proportional to 386,004.28, 532,685.56 and 216,239.64

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Solution

The fourth proportional to 386,004.28, 532,685.56 and 216,239.64 is: 298,410.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,004.28 : 532,685.56 = 216,239.64 : x
  2. Step 2: Convert to fraction form
    386,004.28/532,685.56 = 216,239.64/x
  3. Step 3: Cross multiply
    386,004.28x = 532,685.56 × 216,239.64
  4. Step 4: Simplify right side
    386,004.28x = 115,187,733,727.60
  5. Step 5: Solve for x
    x = 115,187,733,727.60/386,004.28
  6. Step 6: Final answer
    x = 298,410.51

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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.