Home / 854,663.19-1,281,621.11-405,512.43

Finding the Fourth Proportional to 854,663.19, 1,281,621.11 and 405,512.43

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Solution

The fourth proportional to 854,663.19, 1,281,621.11 and 405,512.43 is: 608,091.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,663.19 : 1,281,621.11 = 405,512.43 : x
  2. Step 2: Convert to fraction form
    854,663.19/1,281,621.11 = 405,512.43/x
  3. Step 3: Cross multiply
    854,663.19x = 1,281,621.11 × 405,512.43
  4. Step 4: Simplify right side
    854,663.19x = 519,713,288,627.84
  5. Step 5: Solve for x
    x = 519,713,288,627.84/854,663.19
  6. Step 6: Final answer
    x = 608,091.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.