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Finding the Fourth Proportional to 581,629.01, 801,680.69 and 400,033.49

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Solution

The fourth proportional to 581,629.01, 801,680.69 and 400,033.49 is: 551,380.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    581,629.01 : 801,680.69 = 400,033.49 : x
  2. Step 2: Convert to fraction form
    581,629.01/801,680.69 = 400,033.49/x
  3. Step 3: Cross multiply
    581,629.01x = 801,680.69 × 400,033.49
  4. Step 4: Simplify right side
    581,629.01x = 320,699,121,277.99
  5. Step 5: Solve for x
    x = 320,699,121,277.99/581,629.01
  6. Step 6: Final answer
    x = 551,380.89

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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.