Home / 413,321.20-619,981.80-177,125.20

Finding the Fourth Proportional to 413,321.20, 619,981.80 and 177,125.20

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Solution

The fourth proportional to 413,321.20, 619,981.80 and 177,125.20 is: 265,687.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,321.20 : 619,981.80 = 177,125.20 : x
  2. Step 2: Convert to fraction form
    413,321.20/619,981.80 = 177,125.20/x
  3. Step 3: Cross multiply
    413,321.20x = 619,981.80 × 177,125.20
  4. Step 4: Simplify right side
    413,321.20x = 109,814,400,321.36
  5. Step 5: Solve for x
    x = 109,814,400,321.36/413,321.20
  6. Step 6: Final answer
    x = 265,687.80

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1.5x scale

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.