Home / 1,228,278.08-1,694,979-684,385.76

Finding the Fourth Proportional to 1,228,278.08, 1,694,979 and 684,385.76

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Solution

The fourth proportional to 1,228,278.08, 1,694,979 and 684,385.76 is: 944,427.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,228,278.08 : 1,694,979 = 684,385.76 : x
  2. Step 2: Convert to fraction form
    1,228,278.08/1,694,979 = 684,385.76/x
  3. Step 3: Cross multiply
    1,228,278.08x = 1,694,979 × 684,385.76
  4. Step 4: Simplify right side
    1,228,278.08x = 1,160,019,491,099.04
  5. Step 5: Solve for x
    x = 1,160,019,491,099.04/1,228,278.08
  6. Step 6: Final answer
    x = 944,427.41

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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.