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Finding the Fourth Proportional to 1,281,972.23, 1,769,666.41 and 798,776.12

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Solution

The fourth proportional to 1,281,972.23, 1,769,666.41 and 798,776.12 is: 1,102,650.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,281,972.23 : 1,769,666.41 = 798,776.12 : x
  2. Step 2: Convert to fraction form
    1,281,972.23/1,769,666.41 = 798,776.12/x
  3. Step 3: Cross multiply
    1,281,972.23x = 1,769,666.41 × 798,776.12
  4. Step 4: Simplify right side
    1,281,972.23x = 1,413,567,257,828.86
  5. Step 5: Solve for x
    x = 1,413,567,257,828.86/1,281,972.23
  6. Step 6: Final answer
    x = 1,102,650.45

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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.