Home / 1,638,626.76-2,261,439.54-903,724.77

Finding the Fourth Proportional to 1,638,626.76, 2,261,439.54 and 903,724.77

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Solution

The fourth proportional to 1,638,626.76, 2,261,439.54 and 903,724.77 is: 1,247,214.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,638,626.76 : 2,261,439.54 = 903,724.77 : x
  2. Step 2: Convert to fraction form
    1,638,626.76/2,261,439.54 = 903,724.77/x
  3. Step 3: Cross multiply
    1,638,626.76x = 2,261,439.54 × 903,724.77
  4. Step 4: Simplify right side
    1,638,626.76x = 2,043,718,928,155.41
  5. Step 5: Solve for x
    x = 2,043,718,928,155.41/1,638,626.76
  6. Step 6: Final answer
    x = 1,247,214.42

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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.