Home / 1,941,129.70-2,911,694.55-678,825.70

Finding the Fourth Proportional to 1,941,129.70, 2,911,694.55 and 678,825.70

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Solution

The fourth proportional to 1,941,129.70, 2,911,694.55 and 678,825.70 is: 1,018,238.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,941,129.70 : 2,911,694.55 = 678,825.70 : x
  2. Step 2: Convert to fraction form
    1,941,129.70/2,911,694.55 = 678,825.70/x
  3. Step 3: Cross multiply
    1,941,129.70x = 2,911,694.55 × 678,825.70
  4. Step 4: Simplify right side
    1,941,129.70x = 1,976,533,091,089.93
  5. Step 5: Solve for x
    x = 1,976,533,091,089.93/1,941,129.70
  6. Step 6: Final answer
    x = 1,018,238.55

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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.