Home / 386,541.18-533,426.31-216,773.82

Finding the Fourth Proportional to 386,541.18, 533,426.31 and 216,773.82

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Solution

The fourth proportional to 386,541.18, 533,426.31 and 216,773.82 is: 299,147.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,541.18 : 533,426.31 = 216,773.82 : x
  2. Step 2: Convert to fraction form
    386,541.18/533,426.31 = 216,773.82/x
  3. Step 3: Cross multiply
    386,541.18x = 533,426.31 × 216,773.82
  4. Step 4: Simplify right side
    386,541.18x = 115,632,858,907.20
  5. Step 5: Solve for x
    x = 115,632,858,907.20/386,541.18
  6. Step 6: Final answer
    x = 299,147.58

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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.