Home / 1,640,809.60-2,461,214.40-1,419,625.60

Finding the Fourth Proportional to 1,640,809.60, 2,461,214.40 and 1,419,625.60

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Solution

The fourth proportional to 1,640,809.60, 2,461,214.40 and 1,419,625.60 is: 2,129,438.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,640,809.60 : 2,461,214.40 = 1,419,625.60 : x
  2. Step 2: Convert to fraction form
    1,640,809.60/2,461,214.40 = 1,419,625.60/x
  3. Step 3: Cross multiply
    1,640,809.60x = 2,461,214.40 × 1,419,625.60
  4. Step 4: Simplify right side
    1,640,809.60x = 3,494,002,969,328.64
  5. Step 5: Solve for x
    x = 3,494,002,969,328.64/1,640,809.60
  6. Step 6: Final answer
    x = 2,129,438.40

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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.