Home / 328,749.12-453,670.56-177,842.88

Finding the Fourth Proportional to 328,749.12, 453,670.56 and 177,842.88

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Solution

The fourth proportional to 328,749.12, 453,670.56 and 177,842.88 is: 245,421.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,749.12 : 453,670.56 = 177,842.88 : x
  2. Step 2: Convert to fraction form
    328,749.12/453,670.56 = 177,842.88/x
  3. Step 3: Cross multiply
    328,749.12x = 453,670.56 × 177,842.88
  4. Step 4: Simplify right side
    328,749.12x = 80,682,078,961.61
  5. Step 5: Solve for x
    x = 80,682,078,961.61/328,749.12
  6. Step 6: Final answer
    x = 245,421.43

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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.