Home / 1,919,483.40-2,880,218.70-783,078.60

Finding the Fourth Proportional to 1,919,483.40, 2,880,218.70 and 783,078.60

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Solution

The fourth proportional to 1,919,483.40, 2,880,218.70 and 783,078.60 is: 1,175,023.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,919,483.40 : 2,880,218.70 = 783,078.60 : x
  2. Step 2: Convert to fraction form
    1,919,483.40/2,880,218.70 = 783,078.60/x
  3. Step 3: Cross multiply
    1,919,483.40x = 2,880,218.70 × 783,078.60
  4. Step 4: Simplify right side
    1,919,483.40x = 2,255,437,627,289.82
  5. Step 5: Solve for x
    x = 2,255,437,627,289.82/1,919,483.40
  6. Step 6: Final answer
    x = 1,175,023.25

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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.