Home / 619,227.48-854,170.98-389,420.25

Finding the Fourth Proportional to 619,227.48, 854,170.98 and 389,420.25

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Solution

The fourth proportional to 619,227.48, 854,170.98 and 389,420.25 is: 537,171.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,227.48 : 854,170.98 = 389,420.25 : x
  2. Step 2: Convert to fraction form
    619,227.48/854,170.98 = 389,420.25/x
  3. Step 3: Cross multiply
    619,227.48x = 854,170.98 × 389,420.25
  4. Step 4: Simplify right side
    619,227.48x = 332,631,476,574.35
  5. Step 5: Solve for x
    x = 332,631,476,574.35/619,227.48
  6. Step 6: Final answer
    x = 537,171.70

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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.