Home / 389,881.56-583,936.58-305,113.44

Finding the Fourth Proportional to 389,881.56, 583,936.58 and 305,113.44

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Solution

The fourth proportional to 389,881.56, 583,936.58 and 305,113.44 is: 456,976.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,881.56 : 583,936.58 = 305,113.44 : x
  2. Step 2: Convert to fraction form
    389,881.56/583,936.58 = 305,113.44/x
  3. Step 3: Cross multiply
    389,881.56x = 583,936.58 × 305,113.44
  4. Step 4: Simplify right side
    389,881.56x = 178,166,898,665.64
  5. Step 5: Solve for x
    x = 178,166,898,665.64/389,881.56
  6. Step 6: Final answer
    x = 456,976.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.