Home / 3,138,331.40-4,707,497.10-863,851.40

Finding the Fourth Proportional to 3,138,331.40, 4,707,497.10 and 863,851.40

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Solution

The fourth proportional to 3,138,331.40, 4,707,497.10 and 863,851.40 is: 1,295,777.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,138,331.40 : 4,707,497.10 = 863,851.40 : x
  2. Step 2: Convert to fraction form
    3,138,331.40/4,707,497.10 = 863,851.40/x
  3. Step 3: Cross multiply
    3,138,331.40x = 4,707,497.10 × 863,851.40
  4. Step 4: Simplify right side
    3,138,331.40x = 4,066,577,960,330.94
  5. Step 5: Solve for x
    x = 4,066,577,960,330.94/3,138,331.40
  6. Step 6: Final answer
    x = 1,295,777.10

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Double scale
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Similar ratio
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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.