Home / 928,589.19-1,281,506.45-520,821.83

Finding the Fourth Proportional to 928,589.19, 1,281,506.45 and 520,821.83

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Solution

The fourth proportional to 928,589.19, 1,281,506.45 and 520,821.83 is: 718,764.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,589.19 : 1,281,506.45 = 520,821.83 : x
  2. Step 2: Convert to fraction form
    928,589.19/1,281,506.45 = 520,821.83/x
  3. Step 3: Cross multiply
    928,589.19x = 1,281,506.45 × 520,821.83
  4. Step 4: Simplify right side
    928,589.19x = 667,436,525,434.16
  5. Step 5: Solve for x
    x = 667,436,525,434.16/928,589.19
  6. Step 6: Final answer
    x = 718,764.05

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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.