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Finding the Fourth Proportional to 695,903.16, 960,314.22 and 394,099.32

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Solution

The fourth proportional to 695,903.16, 960,314.22 and 394,099.32 is: 543,838.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,903.16 : 960,314.22 = 394,099.32 : x
  2. Step 2: Convert to fraction form
    695,903.16/960,314.22 = 394,099.32/x
  3. Step 3: Cross multiply
    695,903.16x = 960,314.22 × 394,099.32
  4. Step 4: Simplify right side
    695,903.16x = 378,459,181,088.33
  5. Step 5: Solve for x
    x = 378,459,181,088.33/695,903.16
  6. Step 6: Final answer
    x = 543,838.86

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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.