Home / 619,116.27-854,018.48-389,309.85

Finding the Fourth Proportional to 619,116.27, 854,018.48 and 389,309.85

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Solution

The fourth proportional to 619,116.27, 854,018.48 and 389,309.85 is: 537,019.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,116.27 : 854,018.48 = 389,309.85 : x
  2. Step 2: Convert to fraction form
    619,116.27/854,018.48 = 389,309.85/x
  3. Step 3: Cross multiply
    619,116.27x = 854,018.48 × 389,309.85
  4. Step 4: Simplify right side
    619,116.27x = 332,477,804,399.48
  5. Step 5: Solve for x
    x = 332,477,804,399.48/619,116.27
  6. Step 6: Final answer
    x = 537,019.98

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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.