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Finding the Fourth Proportional to 863,951.90, 1,294,877.23 and 611,305.22

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Solution

The fourth proportional to 863,951.90, 1,294,877.23 and 611,305.22 is: 916,214.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,951.90 : 1,294,877.23 = 611,305.22 : x
  2. Step 2: Convert to fraction form
    863,951.90/1,294,877.23 = 611,305.22/x
  3. Step 3: Cross multiply
    863,951.90x = 1,294,877.23 × 611,305.22
  4. Step 4: Simplify right side
    863,951.90x = 791,565,211,667.07
  5. Step 5: Solve for x
    x = 791,565,211,667.07/863,951.90
  6. Step 6: Final answer
    x = 916,214.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.