Home / 1,241,185,306.80-1,861,777,960.20-423,324,289.20

Finding the Fourth Proportional to 1,241,185,306.80, 1,861,777,960.20 and 423,324,289.20

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Solution

The fourth proportional to 1,241,185,306.80, 1,861,777,960.20 and 423,324,289.20 is: 634,986,433.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,241,185,306.80 : 1,861,777,960.20 = 423,324,289.20 : x
  2. Step 2: Convert to fraction form
    1,241,185,306.80/1,861,777,960.20 = 423,324,289.20/x
  3. Step 3: Cross multiply
    1,241,185,306.80x = 1,861,777,960.20 × 423,324,289.20
  4. Step 4: Simplify right side
    1,241,185,306.80x = 788,135,831,649,890,944
  5. Step 5: Solve for x
    x = 788,135,831,649,890,944/1,241,185,306.80
  6. Step 6: Final answer
    x = 634,986,433.80

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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.