Home / 621,433.08-931,559.04-396,161.28

Finding the Fourth Proportional to 621,433.08, 931,559.04 and 396,161.28

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Solution

The fourth proportional to 621,433.08, 931,559.04 and 396,161.28 is: 593,865.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,433.08 : 931,559.04 = 396,161.28 : x
  2. Step 2: Convert to fraction form
    621,433.08/931,559.04 = 396,161.28/x
  3. Step 3: Cross multiply
    621,433.08x = 931,559.04 × 396,161.28
  4. Step 4: Simplify right side
    621,433.08x = 369,047,621,681.97
  5. Step 5: Solve for x
    x = 369,047,621,681.97/621,433.08
  6. Step 6: Final answer
    x = 593,865.43

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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.