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Finding the Fourth Proportional to 1,412,474.82, 1,949,237.42 and 767,897.47

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Solution

The fourth proportional to 1,412,474.82, 1,949,237.42 and 767,897.47 is: 1,059,710.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,412,474.82 : 1,949,237.42 = 767,897.47 : x
  2. Step 2: Convert to fraction form
    1,412,474.82/1,949,237.42 = 767,897.47/x
  3. Step 3: Cross multiply
    1,412,474.82x = 1,949,237.42 × 767,897.47
  4. Step 4: Simplify right side
    1,412,474.82x = 1,496,814,483,247.33
  5. Step 5: Solve for x
    x = 1,496,814,483,247.33/1,412,474.82
  6. Step 6: Final answer
    x = 1,059,710.56

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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.