Home / 2,071,153.77-2,856,719.87-1,382,478.40

Finding the Fourth Proportional to 2,071,153.77, 2,856,719.87 and 1,382,478.40

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Solution

The fourth proportional to 2,071,153.77, 2,856,719.87 and 1,382,478.40 is: 1,906,837.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,071,153.77 : 2,856,719.87 = 1,382,478.40 : x
  2. Step 2: Convert to fraction form
    2,071,153.77/2,856,719.87 = 1,382,478.40/x
  3. Step 3: Cross multiply
    2,071,153.77x = 2,856,719.87 × 1,382,478.40
  4. Step 4: Simplify right side
    2,071,153.77x = 3,949,353,517,083.31
  5. Step 5: Solve for x
    x = 3,949,353,517,083.31/2,071,153.77
  6. Step 6: Final answer
    x = 1,906,837.43

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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.