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Finding the Fourth Proportional to 446,787.60, 670,300.20 and 193,959.60

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Solution

The fourth proportional to 446,787.60, 670,300.20 and 193,959.60 is: 290,990.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,787.60 : 670,300.20 = 193,959.60 : x
  2. Step 2: Convert to fraction form
    446,787.60/670,300.20 = 193,959.60/x
  3. Step 3: Cross multiply
    446,787.60x = 670,300.20 × 193,959.60
  4. Step 4: Simplify right side
    446,787.60x = 130,011,158,671.92
  5. Step 5: Solve for x
    x = 130,011,158,671.92/446,787.60
  6. Step 6: Final answer
    x = 290,990.97

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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.