Home / 2,560,012.70-3,532,780.85-1,398,445.16

Finding the Fourth Proportional to 2,560,012.70, 3,532,780.85 and 1,398,445.16

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Solution

The fourth proportional to 2,560,012.70, 3,532,780.85 and 1,398,445.16 is: 1,929,834.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,560,012.70 : 3,532,780.85 = 1,398,445.16 : x
  2. Step 2: Convert to fraction form
    2,560,012.70/3,532,780.85 = 1,398,445.16/x
  3. Step 3: Cross multiply
    2,560,012.70x = 3,532,780.85 × 1,398,445.16
  4. Step 4: Simplify right side
    2,560,012.70x = 4,940,400,256,367.06
  5. Step 5: Solve for x
    x = 4,940,400,256,367.06/2,560,012.70
  6. Step 6: Final answer
    x = 1,929,834.28

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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.