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Finding the Fourth Proportional to 863,769.03, 1,191,993.35 and 476,588.03

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Solution

The fourth proportional to 863,769.03, 1,191,993.35 and 476,588.03 is: 657,687.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,769.03 : 1,191,993.35 = 476,588.03 : x
  2. Step 2: Convert to fraction form
    863,769.03/1,191,993.35 = 476,588.03/x
  3. Step 3: Cross multiply
    863,769.03x = 1,191,993.35 × 476,588.03
  4. Step 4: Simplify right side
    863,769.03x = 568,089,754,106.69
  5. Step 5: Solve for x
    x = 568,089,754,106.69/863,769.03
  6. Step 6: Final answer
    x = 657,687.11

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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.