Home / 383,168.82-528,789.40-213,402.98

Finding the Fourth Proportional to 383,168.82, 528,789.40 and 213,402.98

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Solution

The fourth proportional to 383,168.82, 528,789.40 and 213,402.98 is: 294,505.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,168.82 : 528,789.40 = 213,402.98 : x
  2. Step 2: Convert to fraction form
    383,168.82/528,789.40 = 213,402.98/x
  3. Step 3: Cross multiply
    383,168.82x = 528,789.40 × 213,402.98
  4. Step 4: Simplify right side
    383,168.82x = 112,845,233,752.41
  5. Step 5: Solve for x
    x = 112,845,233,752.41/383,168.82
  6. Step 6: Final answer
    x = 294,505.26

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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.