Home / 330,638.41-456,364.70-203,427.91

Finding the Fourth Proportional to 330,638.41, 456,364.70 and 203,427.91

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Solution

The fourth proportional to 330,638.41, 456,364.70 and 203,427.91 is: 280,782.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,638.41 : 456,364.70 = 203,427.91 : x
  2. Step 2: Convert to fraction form
    330,638.41/456,364.70 = 203,427.91/x
  3. Step 3: Cross multiply
    330,638.41x = 456,364.70 × 203,427.91
  4. Step 4: Simplify right side
    330,638.41x = 92,837,317,118.78
  5. Step 5: Solve for x
    x = 92,837,317,118.78/330,638.41
  6. Step 6: Final answer
    x = 280,782.01

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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.