Home / 928,862.12-1,281,844.38-521,054.60

Finding the Fourth Proportional to 928,862.12, 1,281,844.38 and 521,054.60

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Solution

The fourth proportional to 928,862.12, 1,281,844.38 and 521,054.60 is: 719,063.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,862.12 : 1,281,844.38 = 521,054.60 : x
  2. Step 2: Convert to fraction form
    928,862.12/1,281,844.38 = 521,054.60/x
  3. Step 3: Cross multiply
    928,862.12x = 1,281,844.38 × 521,054.60
  4. Step 4: Simplify right side
    928,862.12x = 667,910,910,683.15
  5. Step 5: Solve for x
    x = 667,910,910,683.15/928,862.12
  6. Step 6: Final answer
    x = 719,063.57

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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.