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Finding the Fourth Proportional to 1,035,787.80, 1,551,057.30 and 825,835.80

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Solution

The fourth proportional to 1,035,787.80, 1,551,057.30 and 825,835.80 is: 1,236,661.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,035,787.80 : 1,551,057.30 = 825,835.80 : x
  2. Step 2: Convert to fraction form
    1,035,787.80/1,551,057.30 = 825,835.80/x
  3. Step 3: Cross multiply
    1,035,787.80x = 1,551,057.30 × 825,835.80
  4. Step 4: Simplify right side
    1,035,787.80x = 1,280,918,646,191.34
  5. Step 5: Solve for x
    x = 1,280,918,646,191.34/1,035,787.80
  6. Step 6: Final answer
    x = 1,236,661.26

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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.