Home / 621,119.19-857,124.48-349,198.50

Finding the Fourth Proportional to 621,119.19, 857,124.48 and 349,198.50

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Solution

The fourth proportional to 621,119.19, 857,124.48 and 349,198.50 is: 481,882.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,119.19 : 857,124.48 = 349,198.50 : x
  2. Step 2: Convert to fraction form
    621,119.19/857,124.48 = 349,198.50/x
  3. Step 3: Cross multiply
    621,119.19x = 857,124.48 × 349,198.50
  4. Step 4: Simplify right side
    621,119.19x = 299,306,582,729.28
  5. Step 5: Solve for x
    x = 299,306,582,729.28/621,119.19
  6. Step 6: Final answer
    x = 481,882.68

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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.