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Finding the Fourth Proportional to 2,896,571.60, 4,346,412.60 and 1,213,845.20

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Solution

The fourth proportional to 2,896,571.60, 4,346,412.60 and 1,213,845.20 is: 1,821,419.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,896,571.60 : 4,346,412.60 = 1,213,845.20 : x
  2. Step 2: Convert to fraction form
    2,896,571.60/4,346,412.60 = 1,213,845.20/x
  3. Step 3: Cross multiply
    2,896,571.60x = 4,346,412.60 × 1,213,845.20
  4. Step 4: Simplify right side
    2,896,571.60x = 5,275,872,071,729.52
  5. Step 5: Solve for x
    x = 5,275,872,071,729.52/2,896,571.60
  6. Step 6: Final answer
    x = 1,821,419.53

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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.