Home / 1,397,309.70-2,095,964.55-511,191.30

Finding the Fourth Proportional to 1,397,309.70, 2,095,964.55 and 511,191.30

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Solution

The fourth proportional to 1,397,309.70, 2,095,964.55 and 511,191.30 is: 766,786.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,397,309.70 : 2,095,964.55 = 511,191.30 : x
  2. Step 2: Convert to fraction form
    1,397,309.70/2,095,964.55 = 511,191.30/x
  3. Step 3: Cross multiply
    1,397,309.70x = 2,095,964.55 × 511,191.30
  4. Step 4: Simplify right side
    1,397,309.70x = 1,071,438,843,068.42
  5. Step 5: Solve for x
    x = 1,071,438,843,068.42/1,397,309.70
  6. Step 6: Final answer
    x = 766,786.95

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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.