Home / 386,583.22-533,511.48-216,828.28

Finding the Fourth Proportional to 386,583.22, 533,511.48 and 216,828.28

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Solution

The fourth proportional to 386,583.22, 533,511.48 and 216,828.28 is: 299,237.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,583.22 : 533,511.48 = 216,828.28 : x
  2. Step 2: Convert to fraction form
    386,583.22/533,511.48 = 216,828.28/x
  3. Step 3: Cross multiply
    386,583.22x = 533,511.48 × 216,828.28
  4. Step 4: Simplify right side
    386,583.22x = 115,680,376,828.99
  5. Step 5: Solve for x
    x = 115,680,376,828.99/386,583.22
  6. Step 6: Final answer
    x = 299,237.97

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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.