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Finding the Fourth Proportional to 863,957.28, 1,294,885.28 and 611,310.60

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Solution

The fourth proportional to 863,957.28, 1,294,885.28 and 611,310.60 is: 916,222.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,957.28 : 1,294,885.28 = 611,310.60 : x
  2. Step 2: Convert to fraction form
    863,957.28/1,294,885.28 = 611,310.60/x
  3. Step 3: Cross multiply
    863,957.28x = 1,294,885.28 × 611,310.60
  4. Step 4: Simplify right side
    863,957.28x = 791,577,097,447.97
  5. Step 5: Solve for x
    x = 791,577,097,447.97/863,957.28
  6. Step 6: Final answer
    x = 916,222.50

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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.