Home / 3,840,358.28-5,299,738.74-2,121,442.76

Finding the Fourth Proportional to 3,840,358.28, 5,299,738.74 and 2,121,442.76

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Solution

The fourth proportional to 3,840,358.28, 5,299,738.74 and 2,121,442.76 is: 2,927,615.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,840,358.28 : 5,299,738.74 = 2,121,442.76 : x
  2. Step 2: Convert to fraction form
    3,840,358.28/5,299,738.74 = 2,121,442.76/x
  3. Step 3: Cross multiply
    3,840,358.28x = 5,299,738.74 × 2,121,442.76
  4. Step 4: Simplify right side
    3,840,358.28x = 11,243,092,379,864.52
  5. Step 5: Solve for x
    x = 11,243,092,379,864.52/3,840,358.28
  6. Step 6: Final answer
    x = 2,927,615.49

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.