Home / 386,964.93-533,982.31-217,166.25

Finding the Fourth Proportional to 386,964.93, 533,982.31 and 217,166.25

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Solution

The fourth proportional to 386,964.93, 533,982.31 and 217,166.25 is: 299,672.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,964.93 : 533,982.31 = 217,166.25 : x
  2. Step 2: Convert to fraction form
    386,964.93/533,982.31 = 217,166.25/x
  3. Step 3: Cross multiply
    386,964.93x = 533,982.31 × 217,166.25
  4. Step 4: Simplify right side
    386,964.93x = 115,962,934,743.21
  5. Step 5: Solve for x
    x = 115,962,934,743.21/386,964.93
  6. Step 6: Final answer
    x = 299,672.98

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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.