Home / 3,128,863.17-4,694,643.32-1,689,260.70

Finding the Fourth Proportional to 3,128,863.17, 4,694,643.32 and 1,689,260.70

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Solution

The fourth proportional to 3,128,863.17, 4,694,643.32 and 1,689,260.70 is: 2,534,619.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,128,863.17 : 4,694,643.32 = 1,689,260.70 : x
  2. Step 2: Convert to fraction form
    3,128,863.17/4,694,643.32 = 1,689,260.70/x
  3. Step 3: Cross multiply
    3,128,863.17x = 4,694,643.32 × 1,689,260.70
  4. Step 4: Simplify right side
    3,128,863.17x = 7,930,476,452,547.22
  5. Step 5: Solve for x
    x = 7,930,476,452,547.22/3,128,863.17
  6. Step 6: Final answer
    x = 2,534,619.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.