Home / 1,227,055,729.76-1,693,338,801.59-698,419,710.35

Finding the Fourth Proportional to 1,227,055,729.76, 1,693,338,801.59 and 698,419,710.35

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Solution

The fourth proportional to 1,227,055,729.76, 1,693,338,801.59 and 698,419,710.35 is: 963,820,278.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,227,055,729.76 : 1,693,338,801.59 = 698,419,710.35 : x
  2. Step 2: Convert to fraction form
    1,227,055,729.76/1,693,338,801.59 = 698,419,710.35/x
  3. Step 3: Cross multiply
    1,227,055,729.76x = 1,693,338,801.59 × 698,419,710.35
  4. Step 4: Simplify right side
    1,227,055,729.76x = 1,182,661,195,324,183,296
  5. Step 5: Solve for x
    x = 1,182,661,195,324,183,296/1,227,055,729.76
  6. Step 6: Final answer
    x = 963,820,278.61

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Double scale
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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.