Home / 889,408.40-1,334,112.60-534,239.60

Finding the Fourth Proportional to 889,408.40, 1,334,112.60 and 534,239.60

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Solution

The fourth proportional to 889,408.40, 1,334,112.60 and 534,239.60 is: 801,359.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,408.40 : 1,334,112.60 = 534,239.60 : x
  2. Step 2: Convert to fraction form
    889,408.40/1,334,112.60 = 534,239.60/x
  3. Step 3: Cross multiply
    889,408.40x = 1,334,112.60 × 534,239.60
  4. Step 4: Simplify right side
    889,408.40x = 712,735,781,778.96
  5. Step 5: Solve for x
    x = 712,735,781,778.96/889,408.40
  6. Step 6: Final answer
    x = 801,359.40

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Double scale
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Similar ratio
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1.5x scale

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.