Home / 1,959,679.21-2,938,762.95-761,443.78

Finding the Fourth Proportional to 1,959,679.21, 2,938,762.95 and 761,443.78

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Solution

The fourth proportional to 1,959,679.21, 2,938,762.95 and 761,443.78 is: 1,141,871.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,959,679.21 : 2,938,762.95 = 761,443.78 : x
  2. Step 2: Convert to fraction form
    1,959,679.21/2,938,762.95 = 761,443.78/x
  3. Step 3: Cross multiply
    1,959,679.21x = 2,938,762.95 × 761,443.78
  4. Step 4: Simplify right side
    1,959,679.21x = 2,237,702,769,171.95
  5. Step 5: Solve for x
    x = 2,237,702,769,171.95/1,959,679.21
  6. Step 6: Final answer
    x = 1,141,871.97

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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.