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Finding the Fourth Proportional to 470,936.84, 650,035.14 and 320,121.32

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Solution

The fourth proportional to 470,936.84, 650,035.14 and 320,121.32 is: 441,864.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,936.84 : 650,035.14 = 320,121.32 : x
  2. Step 2: Convert to fraction form
    470,936.84/650,035.14 = 320,121.32/x
  3. Step 3: Cross multiply
    470,936.84x = 650,035.14 × 320,121.32
  4. Step 4: Simplify right side
    470,936.84x = 208,090,107,063.19
  5. Step 5: Solve for x
    x = 208,090,107,063.19/470,936.84
  6. Step 6: Final answer
    x = 441,864.15

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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.