Home / 3,178,919.24-4,398,460.40-2,771,869.20

Finding the Fourth Proportional to 3,178,919.24, 4,398,460.40 and 2,771,869.20

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Solution

The fourth proportional to 3,178,919.24, 4,398,460.40 and 2,771,869.20 is: 3,835,252.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,178,919.24 : 4,398,460.40 = 2,771,869.20 : x
  2. Step 2: Convert to fraction form
    3,178,919.24/4,398,460.40 = 2,771,869.20/x
  3. Step 3: Cross multiply
    3,178,919.24x = 4,398,460.40 × 2,771,869.20
  4. Step 4: Simplify right side
    3,178,919.24x = 12,191,956,910,179.68
  5. Step 5: Solve for x
    x = 12,191,956,910,179.68/3,178,919.24
  6. Step 6: Final answer
    x = 3,835,252.17

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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.