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Finding the Fourth Proportional to 1,247,794.91, 1,721,973.72 and 703,929.02

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Solution

The fourth proportional to 1,247,794.91, 1,721,973.72 and 703,929.02 is: 971,431.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,247,794.91 : 1,721,973.72 = 703,929.02 : x
  2. Step 2: Convert to fraction form
    1,247,794.91/1,721,973.72 = 703,929.02/x
  3. Step 3: Cross multiply
    1,247,794.91x = 1,721,973.72 × 703,929.02
  4. Step 4: Simplify right side
    1,247,794.91x = 1,212,147,273,185.35
  5. Step 5: Solve for x
    x = 1,212,147,273,185.35/1,247,794.91
  6. Step 6: Final answer
    x = 971,431.49

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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.