Home / 1,941,709.80-2,912,046.30-679,405.80

Finding the Fourth Proportional to 1,941,709.80, 2,912,046.30 and 679,405.80

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Solution

The fourth proportional to 1,941,709.80, 2,912,046.30 and 679,405.80 is: 1,018,927.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,941,709.80 : 2,912,046.30 = 679,405.80 : x
  2. Step 2: Convert to fraction form
    1,941,709.80/2,912,046.30 = 679,405.80/x
  3. Step 3: Cross multiply
    1,941,709.80x = 2,912,046.30 × 679,405.80
  4. Step 4: Simplify right side
    1,941,709.80x = 1,978,461,146,088.54
  5. Step 5: Solve for x
    x = 1,978,461,146,088.54/1,941,709.80
  6. Step 6: Final answer
    x = 1,018,927.31

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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.