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Finding the Fourth Proportional to 622,707.44, 859,309.63 and 347,050.59

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Solution

The fourth proportional to 622,707.44, 859,309.63 and 347,050.59 is: 478,914.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,707.44 : 859,309.63 = 347,050.59 : x
  2. Step 2: Convert to fraction form
    622,707.44/859,309.63 = 347,050.59/x
  3. Step 3: Cross multiply
    622,707.44x = 859,309.63 × 347,050.59
  4. Step 4: Simplify right side
    622,707.44x = 298,223,909,994.14
  5. Step 5: Solve for x
    x = 298,223,909,994.14/622,707.44
  6. Step 6: Final answer
    x = 478,914.97

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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.