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Finding the Fourth Proportional to 1,294,808,683.74, 1,786,428,052.44 and 792,493,806.30

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Solution

The fourth proportional to 1,294,808,683.74, 1,786,428,052.44 and 792,493,806.30 is: 1,093,391,776.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,294,808,683.74 : 1,786,428,052.44 = 792,493,806.30 : x
  2. Step 2: Convert to fraction form
    1,294,808,683.74/1,786,428,052.44 = 792,493,806.30/x
  3. Step 3: Cross multiply
    1,294,808,683.74x = 1,786,428,052.44 × 792,493,806.30
  4. Step 4: Simplify right side
    1,294,808,683.74x = 1,415,733,166,959,271,680
  5. Step 5: Solve for x
    x = 1,415,733,166,959,271,680/1,294,808,683.74
  6. Step 6: Final answer
    x = 1,093,391,776.51

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Double scale
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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.