Home / 328,518.72-453,355.20-177,615.36

Finding the Fourth Proportional to 328,518.72, 453,355.20 and 177,615.36

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Solution

The fourth proportional to 328,518.72, 453,355.20 and 177,615.36 is: 245,108.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,518.72 : 453,355.20 = 177,615.36 : x
  2. Step 2: Convert to fraction form
    328,518.72/453,355.20 = 177,615.36/x
  3. Step 3: Cross multiply
    328,518.72x = 453,355.20 × 177,615.36
  4. Step 4: Simplify right side
    328,518.72x = 80,522,847,055.87
  5. Step 5: Solve for x
    x = 80,522,847,055.87/328,518.72
  6. Step 6: Final answer
    x = 245,108.85

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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.