Home / 1,277,746.80-1,763,481.53-819,378.95

Finding the Fourth Proportional to 1,277,746.80, 1,763,481.53 and 819,378.95

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Solution

The fourth proportional to 1,277,746.80, 1,763,481.53 and 819,378.95 is: 1,130,865.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,277,746.80 : 1,763,481.53 = 819,378.95 : x
  2. Step 2: Convert to fraction form
    1,277,746.80/1,763,481.53 = 819,378.95/x
  3. Step 3: Cross multiply
    1,277,746.80x = 1,763,481.53 × 819,378.95
  4. Step 4: Simplify right side
    1,277,746.80x = 1,444,959,631,481.49
  5. Step 5: Solve for x
    x = 1,444,959,631,481.49/1,277,746.80
  6. Step 6: Final answer
    x = 1,130,865.39

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.