Home / 2,116,266.76-2,919,993.78-1,257,116.68

Finding the Fourth Proportional to 2,116,266.76, 2,919,993.78 and 1,257,116.68

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Solution

The fourth proportional to 2,116,266.76, 2,919,993.78 and 1,257,116.68 is: 1,734,551.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,116,266.76 : 2,919,993.78 = 1,257,116.68 : x
  2. Step 2: Convert to fraction form
    2,116,266.76/2,919,993.78 = 1,257,116.68/x
  3. Step 3: Cross multiply
    2,116,266.76x = 2,919,993.78 × 1,257,116.68
  4. Step 4: Simplify right side
    2,116,266.76x = 3,670,772,886,334.25
  5. Step 5: Solve for x
    x = 3,670,772,886,334.25/2,116,266.76
  6. Step 6: Final answer
    x = 1,734,551.12

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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.