Home / 1,640,811.60-2,461,201.20-518,880.60

Finding the Fourth Proportional to 1,640,811.60, 2,461,201.20 and 518,880.60

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Solution

The fourth proportional to 1,640,811.60, 2,461,201.20 and 518,880.60 is: 778,315.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,640,811.60 : 2,461,201.20 = 518,880.60 : x
  2. Step 2: Convert to fraction form
    1,640,811.60/2,461,201.20 = 518,880.60/x
  3. Step 3: Cross multiply
    1,640,811.60x = 2,461,201.20 × 518,880.60
  4. Step 4: Simplify right side
    1,640,811.60x = 1,277,069,555,376.72
  5. Step 5: Solve for x
    x = 1,277,069,555,376.72/1,640,811.60
  6. Step 6: Final answer
    x = 778,315.78

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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.