Home / 386,879.03-533,893.35-217,113.14

Finding the Fourth Proportional to 386,879.03, 533,893.35 and 217,113.14

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Solution

The fourth proportional to 386,879.03, 533,893.35 and 217,113.14 is: 299,616.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,879.03 : 533,893.35 = 217,113.14 : x
  2. Step 2: Convert to fraction form
    386,879.03/533,893.35 = 217,113.14/x
  3. Step 3: Cross multiply
    386,879.03x = 533,893.35 × 217,113.14
  4. Step 4: Simplify right side
    386,879.03x = 115,915,261,643.62
  5. Step 5: Solve for x
    x = 115,915,261,643.62/386,879.03
  6. Step 6: Final answer
    x = 299,616.30

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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.