Home / 1,277,339.75-1,913,840.65-770,836.45

Finding the Fourth Proportional to 1,277,339.75, 1,913,840.65 and 770,836.45

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Solution

The fourth proportional to 1,277,339.75, 1,913,840.65 and 770,836.45 is: 1,154,945.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,277,339.75 : 1,913,840.65 = 770,836.45 : x
  2. Step 2: Convert to fraction form
    1,277,339.75/1,913,840.65 = 770,836.45/x
  3. Step 3: Cross multiply
    1,277,339.75x = 1,913,840.65 × 770,836.45
  4. Step 4: Simplify right side
    1,277,339.75x = 1,475,258,122,942.49
  5. Step 5: Solve for x
    x = 1,475,258,122,942.49/1,277,339.75
  6. Step 6: Final answer
    x = 1,154,945.76

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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.