Home / 1,640,806.20-2,460,978.90-518,988.60

Finding the Fourth Proportional to 1,640,806.20, 2,460,978.90 and 518,988.60

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Solution

The fourth proportional to 1,640,806.20, 2,460,978.90 and 518,988.60 is: 778,410.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,640,806.20 : 2,460,978.90 = 518,988.60 : x
  2. Step 2: Convert to fraction form
    1,640,806.20/2,460,978.90 = 518,988.60/x
  3. Step 3: Cross multiply
    1,640,806.20x = 2,460,978.90 × 518,988.60
  4. Step 4: Simplify right side
    1,640,806.20x = 1,277,219,993,940.54
  5. Step 5: Solve for x
    x = 1,277,219,993,940.54/1,640,806.20
  6. Step 6: Final answer
    x = 778,410.02

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.