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Finding the Fourth Proportional to 1,163,365.60, 1,745,163.60 and 405,090.40

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Solution

The fourth proportional to 1,163,365.60, 1,745,163.60 and 405,090.40 is: 607,675.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,163,365.60 : 1,745,163.60 = 405,090.40 : x
  2. Step 2: Convert to fraction form
    1,163,365.60/1,745,163.60 = 405,090.40/x
  3. Step 3: Cross multiply
    1,163,365.60x = 1,745,163.60 × 405,090.40
  4. Step 4: Simplify right side
    1,163,365.60x = 706,949,020,789.44
  5. Step 5: Solve for x
    x = 706,949,020,789.44/1,163,365.60
  6. Step 6: Final answer
    x = 607,675.71

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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.