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Finding the Fourth Proportional to 695,068.16, 958,908.96 and 422,917.88

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Solution

The fourth proportional to 695,068.16, 958,908.96 and 422,917.88 is: 583,453.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,068.16 : 958,908.96 = 422,917.88 : x
  2. Step 2: Convert to fraction form
    695,068.16/958,908.96 = 422,917.88/x
  3. Step 3: Cross multiply
    695,068.16x = 958,908.96 × 422,917.88
  4. Step 4: Simplify right side
    695,068.16x = 405,539,744,476.21
  5. Step 5: Solve for x
    x = 405,539,744,476.21/695,068.16
  6. Step 6: Final answer
    x = 583,453.20

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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.