Home / 619,621.41-855,008.15-347,632.73

Finding the Fourth Proportional to 619,621.41, 855,008.15 and 347,632.73

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Solution

The fourth proportional to 619,621.41, 855,008.15 and 347,632.73 is: 479,694.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,621.41 : 855,008.15 = 347,632.73 : x
  2. Step 2: Convert to fraction form
    619,621.41/855,008.15 = 347,632.73/x
  3. Step 3: Cross multiply
    619,621.41x = 855,008.15 × 347,632.73
  4. Step 4: Simplify right side
    619,621.41x = 297,228,811,343.55
  5. Step 5: Solve for x
    x = 297,228,811,343.55/619,621.41
  6. Step 6: Final answer
    x = 479,694.22

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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.