Home / 619,110.02-854,009.85-389,303.60

Finding the Fourth Proportional to 619,110.02, 854,009.85 and 389,303.60

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Solution

The fourth proportional to 619,110.02, 854,009.85 and 389,303.60 is: 537,011.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,110.02 : 854,009.85 = 389,303.60 : x
  2. Step 2: Convert to fraction form
    619,110.02/854,009.85 = 389,303.60/x
  3. Step 3: Cross multiply
    619,110.02x = 854,009.85 × 389,303.60
  4. Step 4: Simplify right side
    619,110.02x = 332,469,109,040.46
  5. Step 5: Solve for x
    x = 332,469,109,040.46/619,110.02
  6. Step 6: Final answer
    x = 537,011.35

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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.