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Finding the Fourth Proportional to 505,606.86, 697,708.89 and 301,887.81

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Solution

The fourth proportional to 505,606.86, 697,708.89 and 301,887.81 is: 416,588.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,606.86 : 697,708.89 = 301,887.81 : x
  2. Step 2: Convert to fraction form
    505,606.86/697,708.89 = 301,887.81/x
  3. Step 3: Cross multiply
    505,606.86x = 697,708.89 × 301,887.81
  4. Step 4: Simplify right side
    505,606.86x = 210,629,808,819.63
  5. Step 5: Solve for x
    x = 210,629,808,819.63/505,606.86
  6. Step 6: Final answer
    x = 416,588.12

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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.