Home / 908,335,694.03-1,253,503,761.41-490,647,981.20

Finding the Fourth Proportional to 908,335,694.03, 1,253,503,761.41 and 490,647,981.20

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Solution

The fourth proportional to 908,335,694.03, 1,253,503,761.41 and 490,647,981.20 is: 677,094,486.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,335,694.03 : 1,253,503,761.41 = 490,647,981.20 : x
  2. Step 2: Convert to fraction form
    908,335,694.03/1,253,503,761.41 = 490,647,981.20/x
  3. Step 3: Cross multiply
    908,335,694.03x = 1,253,503,761.41 × 490,647,981.20
  4. Step 4: Simplify right side
    908,335,694.03x = 615,029,089,957,382,016
  5. Step 5: Solve for x
    x = 615,029,089,957,382,016/908,335,694.03
  6. Step 6: Final answer
    x = 677,094,486.11

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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.