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Finding the Fourth Proportional to 695,544.86, 959,459.63 and 405,122.19

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Solution

The fourth proportional to 695,544.86, 959,459.63 and 405,122.19 is: 558,840.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,544.86 : 959,459.63 = 405,122.19 : x
  2. Step 2: Convert to fraction form
    695,544.86/959,459.63 = 405,122.19/x
  3. Step 3: Cross multiply
    695,544.86x = 959,459.63 × 405,122.19
  4. Step 4: Simplify right side
    695,544.86x = 388,698,384,496.58
  5. Step 5: Solve for x
    x = 388,698,384,496.58/695,544.86
  6. Step 6: Final answer
    x = 558,840.14

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1.5x scale

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.