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Finding the Fourth Proportional to 1,776,978, 2,452,231.26 and 972,162

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Solution

The fourth proportional to 1,776,978, 2,452,231.26 and 972,162 is: 1,341,584.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,776,978 : 2,452,231.26 = 972,162 : x
  2. Step 2: Convert to fraction form
    1,776,978/2,452,231.26 = 972,162/x
  3. Step 3: Cross multiply
    1,776,978x = 2,452,231.26 × 972,162
  4. Step 4: Simplify right side
    1,776,978x = 2,383,966,046,184.12
  5. Step 5: Solve for x
    x = 2,383,966,046,184.12/1,776,978
  6. Step 6: Final answer
    x = 1,341,584.45

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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.