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Finding the Fourth Proportional to 863,740.50, 1,191,958.52 and 476,580

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Solution

The fourth proportional to 863,740.50, 1,191,958.52 and 476,580 is: 657,678.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,740.50 : 1,191,958.52 = 476,580 : x
  2. Step 2: Convert to fraction form
    863,740.50/1,191,958.52 = 476,580/x
  3. Step 3: Cross multiply
    863,740.50x = 1,191,958.52 × 476,580
  4. Step 4: Simplify right side
    863,740.50x = 568,063,591,461.60
  5. Step 5: Solve for x
    x = 568,063,591,461.60/863,740.50
  6. Step 6: Final answer
    x = 657,678.54

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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.