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Finding the Fourth Proportional to 884,902.60, 1,325,385.60 and 727,438.60

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Solution

The fourth proportional to 884,902.60, 1,325,385.60 and 727,438.60 is: 1,089,539.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    884,902.60 : 1,325,385.60 = 727,438.60 : x
  2. Step 2: Convert to fraction form
    884,902.60/1,325,385.60 = 727,438.60/x
  3. Step 3: Cross multiply
    884,902.60x = 1,325,385.60 × 727,438.60
  4. Step 4: Simplify right side
    884,902.60x = 964,136,645,324.16
  5. Step 5: Solve for x
    x = 964,136,645,324.16/884,902.60
  6. Step 6: Final answer
    x = 1,089,539.85

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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.