Home / 936,856.40-1,405,138.80-262,871.60

Finding the Fourth Proportional to 936,856.40, 1,405,138.80 and 262,871.60

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Solution

The fourth proportional to 936,856.40, 1,405,138.80 and 262,871.60 is: 394,266.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    936,856.40 : 1,405,138.80 = 262,871.60 : x
  2. Step 2: Convert to fraction form
    936,856.40/1,405,138.80 = 262,871.60/x
  3. Step 3: Cross multiply
    936,856.40x = 1,405,138.80 × 262,871.60
  4. Step 4: Simplify right side
    936,856.40x = 369,371,084,578.08
  5. Step 5: Solve for x
    x = 369,371,084,578.08/936,856.40
  6. Step 6: Final answer
    x = 394,266.49

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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.