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Finding the Fourth Proportional to 766,893.80, 1,150,340.70 and 714,405.80

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Solution

The fourth proportional to 766,893.80, 1,150,340.70 and 714,405.80 is: 1,071,608.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,893.80 : 1,150,340.70 = 714,405.80 : x
  2. Step 2: Convert to fraction form
    766,893.80/1,150,340.70 = 714,405.80/x
  3. Step 3: Cross multiply
    766,893.80x = 1,150,340.70 × 714,405.80
  4. Step 4: Simplify right side
    766,893.80x = 821,810,068,056.06
  5. Step 5: Solve for x
    x = 821,810,068,056.06/766,893.80
  6. Step 6: Final answer
    x = 1,071,608.70

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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.