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Finding the Fourth Proportional to 695,899.14, 960,342.63 and 405,683.01

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Solution

The fourth proportional to 695,899.14, 960,342.63 and 405,683.01 is: 559,843.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,899.14 : 960,342.63 = 405,683.01 : x
  2. Step 2: Convert to fraction form
    695,899.14/960,342.63 = 405,683.01/x
  3. Step 3: Cross multiply
    695,899.14x = 960,342.63 × 405,683.01
  4. Step 4: Simplify right side
    695,899.14x = 389,594,688,769.72
  5. Step 5: Solve for x
    x = 389,594,688,769.72/695,899.14
  6. Step 6: Final answer
    x = 559,843.61

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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.