Home / 840,554,583.88-1,261,606,930.86-426,322,127.56

Finding the Fourth Proportional to 840,554,583.88, 1,261,606,930.86 and 426,322,127.56

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Solution

The fourth proportional to 840,554,583.88, 1,261,606,930.86 and 426,322,127.56 is: 639,876,292.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,554,583.88 : 1,261,606,930.86 = 426,322,127.56 : x
  2. Step 2: Convert to fraction form
    840,554,583.88/1,261,606,930.86 = 426,322,127.56/x
  3. Step 3: Cross multiply
    840,554,583.88x = 1,261,606,930.86 × 426,322,127.56
  4. Step 4: Simplify right side
    840,554,583.88x = 537,850,950,908,676,992
  5. Step 5: Solve for x
    x = 537,850,950,908,676,992/840,554,583.88
  6. Step 6: Final answer
    x = 639,876,292.66

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Double scale
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1.5x scale

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.