Home / 910,686,603.06-1,256,747,245.83-492,998,578.38

Finding the Fourth Proportional to 910,686,603.06, 1,256,747,245.83 and 492,998,578.38

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Solution

The fourth proportional to 910,686,603.06, 1,256,747,245.83 and 492,998,578.38 is: 680,337,893.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,686,603.06 : 1,256,747,245.83 = 492,998,578.38 : x
  2. Step 2: Convert to fraction form
    910,686,603.06/1,256,747,245.83 = 492,998,578.38/x
  3. Step 3: Cross multiply
    910,686,603.06x = 1,256,747,245.83 × 492,998,578.38
  4. Step 4: Simplify right side
    910,686,603.06x = 619,574,605,577,170,304
  5. Step 5: Solve for x
    x = 619,574,605,577,170,304/910,686,603.06
  6. Step 6: Final answer
    x = 680,337,893.95

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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.