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Finding the Fourth Proportional to 673,487.06, 929,530.76 and 401,571.68

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Solution

The fourth proportional to 673,487.06, 929,530.76 and 401,571.68 is: 554,239.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,487.06 : 929,530.76 = 401,571.68 : x
  2. Step 2: Convert to fraction form
    673,487.06/929,530.76 = 401,571.68/x
  3. Step 3: Cross multiply
    673,487.06x = 929,530.76 × 401,571.68
  4. Step 4: Simplify right side
    673,487.06x = 373,273,222,249.37
  5. Step 5: Solve for x
    x = 373,273,222,249.37/673,487.06
  6. Step 6: Final answer
    x = 554,239.64

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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.