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Finding the Fourth Proportional to 1,984,663.74, 2,973,571.65 and 1,086,751.74

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Solution

The fourth proportional to 1,984,663.74, 2,973,571.65 and 1,086,751.74 is: 1,628,252.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,984,663.74 : 2,973,571.65 = 1,086,751.74 : x
  2. Step 2: Convert to fraction form
    1,984,663.74/2,973,571.65 = 1,086,751.74/x
  3. Step 3: Cross multiply
    1,984,663.74x = 2,973,571.65 × 1,086,751.74
  4. Step 4: Simplify right side
    1,984,663.74x = 3,231,534,164,652.17
  5. Step 5: Solve for x
    x = 3,231,534,164,652.17/1,984,663.74
  6. Step 6: Final answer
    x = 1,628,252.74

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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.