Home / 2,119,835.20-3,178,658.40-623,732.80

Finding the Fourth Proportional to 2,119,835.20, 3,178,658.40 and 623,732.80

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Solution

The fourth proportional to 2,119,835.20, 3,178,658.40 and 623,732.80 is: 935,277.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,119,835.20 : 3,178,658.40 = 623,732.80 : x
  2. Step 2: Convert to fraction form
    2,119,835.20/3,178,658.40 = 623,732.80/x
  3. Step 3: Cross multiply
    2,119,835.20x = 3,178,658.40 × 623,732.80
  4. Step 4: Simplify right side
    2,119,835.20x = 1,982,633,504,075.52
  5. Step 5: Solve for x
    x = 1,982,633,504,075.52/2,119,835.20
  6. Step 6: Final answer
    x = 935,277.19

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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.