Home / 386,965.43-533,983.00-217,166.75

Finding the Fourth Proportional to 386,965.43, 533,983.00 and 217,166.75

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Solution

The fourth proportional to 386,965.43, 533,983.00 and 217,166.75 is: 299,673.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,965.43 : 533,983.00 = 217,166.75 : x
  2. Step 2: Convert to fraction form
    386,965.43/533,983.00 = 217,166.75/x
  3. Step 3: Cross multiply
    386,965.43x = 533,983.00 × 217,166.75
  4. Step 4: Simplify right side
    386,965.43x = 115,963,352,122.33
  5. Step 5: Solve for x
    x = 115,963,352,122.33/386,965.43
  6. Step 6: Final answer
    x = 299,673.67

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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.