Home / 939,010.40-1,408,515.60-274,162.40

Finding the Fourth Proportional to 939,010.40, 1,408,515.60 and 274,162.40

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Solution

The fourth proportional to 939,010.40, 1,408,515.60 and 274,162.40 is: 411,243.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,010.40 : 1,408,515.60 = 274,162.40 : x
  2. Step 2: Convert to fraction form
    939,010.40/1,408,515.60 = 274,162.40/x
  3. Step 3: Cross multiply
    939,010.40x = 1,408,515.60 × 274,162.40
  4. Step 4: Simplify right side
    939,010.40x = 386,162,017,333.44
  5. Step 5: Solve for x
    x = 386,162,017,333.44/939,010.40
  6. Step 6: Final answer
    x = 411,243.60

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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.