Home / 386,553.70-533,447.97-216,784.18

Finding the Fourth Proportional to 386,553.70, 533,447.97 and 216,784.18

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Solution

The fourth proportional to 386,553.70, 533,447.97 and 216,784.18 is: 299,164.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,553.70 : 533,447.97 = 216,784.18 : x
  2. Step 2: Convert to fraction form
    386,553.70/533,447.97 = 216,784.18/x
  3. Step 3: Cross multiply
    386,553.70x = 533,447.97 × 216,784.18
  4. Step 4: Simplify right side
    386,553.70x = 115,643,080,749.12
  5. Step 5: Solve for x
    x = 115,643,080,749.12/386,553.70
  6. Step 6: Final answer
    x = 299,164.34

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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.