Home / 386,004.28-532,685.54-216,239.62

Finding the Fourth Proportional to 386,004.28, 532,685.54 and 216,239.62

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Solution

The fourth proportional to 386,004.28, 532,685.54 and 216,239.62 is: 298,410.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,004.28 : 532,685.54 = 216,239.62 : x
  2. Step 2: Convert to fraction form
    386,004.28/532,685.54 = 216,239.62/x
  3. Step 3: Cross multiply
    386,004.28x = 532,685.54 × 216,239.62
  4. Step 4: Simplify right side
    386,004.28x = 115,187,718,749.10
  5. Step 5: Solve for x
    x = 115,187,718,749.10/386,004.28
  6. Step 6: Final answer
    x = 298,410.47

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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.