Home / 1,941,319.89-2,678,232.33-1,288,253.88

Finding the Fourth Proportional to 1,941,319.89, 2,678,232.33 and 1,288,253.88

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Solution

The fourth proportional to 1,941,319.89, 2,678,232.33 and 1,288,253.88 is: 1,777,266.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,941,319.89 : 2,678,232.33 = 1,288,253.88 : x
  2. Step 2: Convert to fraction form
    1,941,319.89/2,678,232.33 = 1,288,253.88/x
  3. Step 3: Cross multiply
    1,941,319.89x = 2,678,232.33 × 1,288,253.88
  4. Step 4: Simplify right side
    1,941,319.89x = 3,450,243,190,663.94
  5. Step 5: Solve for x
    x = 3,450,243,190,663.94/1,941,319.89
  6. Step 6: Final answer
    x = 1,777,266.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.