Home / 312,638.41-431,445.96-174,832.80

Finding the Fourth Proportional to 312,638.41, 431,445.96 and 174,832.80

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Solution

The fourth proportional to 312,638.41, 431,445.96 and 174,832.80 is: 241,272.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,638.41 : 431,445.96 = 174,832.80 : x
  2. Step 2: Convert to fraction form
    312,638.41/431,445.96 = 174,832.80/x
  3. Step 3: Cross multiply
    312,638.41x = 431,445.96 × 174,832.80
  4. Step 4: Simplify right side
    312,638.41x = 75,430,905,235.49
  5. Step 5: Solve for x
    x = 75,430,905,235.49/312,638.41
  6. Step 6: Final answer
    x = 241,272.03

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1.5x scale

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.