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Finding the Fourth Proportional to 1,069,789,987.84, 1,476,521,904 and 693,912,397.44

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Solution

The fourth proportional to 1,069,789,987.84, 1,476,521,904 and 693,912,397.44 is: 957,736,439.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,069,789,987.84 : 1,476,521,904 = 693,912,397.44 : x
  2. Step 2: Convert to fraction form
    1,069,789,987.84/1,476,521,904 = 693,912,397.44/x
  3. Step 3: Cross multiply
    1,069,789,987.84x = 1,476,521,904 × 693,912,397.44
  4. Step 4: Simplify right side
    1,069,789,987.84x = 1,024,576,854,277,313,664
  5. Step 5: Solve for x
    x = 1,024,576,854,277,313,664/1,069,789,987.84
  6. Step 6: Final answer
    x = 957,736,439.79

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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.