Home / 1,277,144.84-1,913,549.31-770,641.49

Finding the Fourth Proportional to 1,277,144.84, 1,913,549.31 and 770,641.49

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Solution

The fourth proportional to 1,277,144.84, 1,913,549.31 and 770,641.49 is: 1,154,654.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,277,144.84 : 1,913,549.31 = 770,641.49 : x
  2. Step 2: Convert to fraction form
    1,277,144.84/1,913,549.31 = 770,641.49/x
  3. Step 3: Cross multiply
    1,277,144.84x = 1,913,549.31 × 770,641.49
  4. Step 4: Simplify right side
    1,277,144.84x = 1,474,660,481,879.13
  5. Step 5: Solve for x
    x = 1,474,660,481,879.13/1,277,144.84
  6. Step 6: Final answer
    x = 1,154,654.07

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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.