Home / 1,958,786.30-2,938,040.12-519,437.76

Finding the Fourth Proportional to 1,958,786.30, 2,938,040.12 and 519,437.76

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Solution

The fourth proportional to 1,958,786.30, 2,938,040.12 and 519,437.76 is: 779,119.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,958,786.30 : 2,938,040.12 = 519,437.76 : x
  2. Step 2: Convert to fraction form
    1,958,786.30/2,938,040.12 = 519,437.76/x
  3. Step 3: Cross multiply
    1,958,786.30x = 2,938,040.12 × 519,437.76
  4. Step 4: Simplify right side
    1,958,786.30x = 1,526,128,976,125.74
  5. Step 5: Solve for x
    x = 1,526,128,976,125.74/1,958,786.30
  6. Step 6: Final answer
    x = 779,119.69

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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.