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Finding the Fourth Proportional to 3,493,317.94, 5,239,976.91 and 968,973.19

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Solution

The fourth proportional to 3,493,317.94, 5,239,976.91 and 968,973.19 is: 1,453,459.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,493,317.94 : 5,239,976.91 = 968,973.19 : x
  2. Step 2: Convert to fraction form
    3,493,317.94/5,239,976.91 = 968,973.19/x
  3. Step 3: Cross multiply
    3,493,317.94x = 5,239,976.91 × 968,973.19
  4. Step 4: Simplify right side
    3,493,317.94x = 5,077,397,128,909.10
  5. Step 5: Solve for x
    x = 5,077,397,128,909.10/3,493,317.94
  6. Step 6: Final answer
    x = 1,453,459.78

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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.