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Finding the Fourth Proportional to 695,960, 1,043,193.72 and 455,983.28

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Solution

The fourth proportional to 695,960, 1,043,193.72 and 455,983.28 is: 683,485.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,960 : 1,043,193.72 = 455,983.28 : x
  2. Step 2: Convert to fraction form
    695,960/1,043,193.72 = 455,983.28/x
  3. Step 3: Cross multiply
    695,960x = 1,043,193.72 × 455,983.28
  4. Step 4: Simplify right side
    695,960x = 475,678,894,121.00
  5. Step 5: Solve for x
    x = 475,678,894,121.00/695,960
  6. Step 6: Final answer
    x = 683,485.97

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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.