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Finding the Fourth Proportional to 703,965,443.81, 1,057,669,772.92 and 664,808,695.97

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Solution

The fourth proportional to 703,965,443.81, 1,057,669,772.92 and 664,808,695.97 is: 998,838,890.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,965,443.81 : 1,057,669,772.92 = 664,808,695.97 : x
  2. Step 2: Convert to fraction form
    703,965,443.81/1,057,669,772.92 = 664,808,695.97/x
  3. Step 3: Cross multiply
    703,965,443.81x = 1,057,669,772.92 × 664,808,695.97
  4. Step 4: Simplify right side
    703,965,443.81x = 703,148,062,494,880,896
  5. Step 5: Solve for x
    x = 703,148,062,494,880,896/703,965,443.81
  6. Step 6: Final answer
    x = 998,838,890.01

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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.