Home / 928,739.44-1,281,570.80-520,858

Finding the Fourth Proportional to 928,739.44, 1,281,570.80 and 520,858

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Solution

The fourth proportional to 928,739.44, 1,281,570.80 and 520,858 is: 718,733.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,739.44 : 1,281,570.80 = 520,858 : x
  2. Step 2: Convert to fraction form
    928,739.44/1,281,570.80 = 520,858/x
  3. Step 3: Cross multiply
    928,739.44x = 1,281,570.80 × 520,858
  4. Step 4: Simplify right side
    928,739.44x = 667,516,403,746.40
  5. Step 5: Solve for x
    x = 667,516,403,746.40/928,739.44
  6. Step 6: Final answer
    x = 718,733.78

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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.