Home / 621,422.08-931,542.60-396,150.22

Finding the Fourth Proportional to 621,422.08, 931,542.60 and 396,150.22

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Solution

The fourth proportional to 621,422.08, 931,542.60 and 396,150.22 is: 593,848.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,422.08 : 931,542.60 = 396,150.22 : x
  2. Step 2: Convert to fraction form
    621,422.08/931,542.60 = 396,150.22/x
  3. Step 3: Cross multiply
    621,422.08x = 931,542.60 × 396,150.22
  4. Step 4: Simplify right side
    621,422.08x = 369,030,805,929.37
  5. Step 5: Solve for x
    x = 369,030,805,929.37/621,422.08
  6. Step 6: Final answer
    x = 593,848.88

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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.