Home / 928,204.40-1,390,978.20-527,999.60

Finding the Fourth Proportional to 928,204.40, 1,390,978.20 and 527,999.60

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Solution

The fourth proportional to 928,204.40, 1,390,978.20 and 527,999.60 is: 791,243.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,204.40 : 1,390,978.20 = 527,999.60 : x
  2. Step 2: Convert to fraction form
    928,204.40/1,390,978.20 = 527,999.60/x
  3. Step 3: Cross multiply
    928,204.40x = 1,390,978.20 × 527,999.60
  4. Step 4: Simplify right side
    928,204.40x = 734,435,933,208.72
  5. Step 5: Solve for x
    x = 734,435,933,208.72/928,204.40
  6. Step 6: Final answer
    x = 791,243.75

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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.