Home / 619,111.02-854,011.23-389,304.60

Finding the Fourth Proportional to 619,111.02, 854,011.23 and 389,304.60

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Solution

The fourth proportional to 619,111.02, 854,011.23 and 389,304.60 is: 537,012.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,111.02 : 854,011.23 = 389,304.60 : x
  2. Step 2: Convert to fraction form
    619,111.02/854,011.23 = 389,304.60/x
  3. Step 3: Cross multiply
    619,111.02x = 854,011.23 × 389,304.60
  4. Step 4: Simplify right side
    619,111.02x = 332,470,500,290.66
  5. Step 5: Solve for x
    x = 332,470,500,290.66/619,111.02
  6. Step 6: Final answer
    x = 537,012.73

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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.