Home / 1,938,235.80-2,907,791.18-641,384.87

Finding the Fourth Proportional to 1,938,235.80, 2,907,791.18 and 641,384.87

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Solution

The fourth proportional to 1,938,235.80, 2,907,791.18 and 641,384.87 is: 962,222.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,938,235.80 : 2,907,791.18 = 641,384.87 : x
  2. Step 2: Convert to fraction form
    1,938,235.80/2,907,791.18 = 641,384.87/x
  3. Step 3: Cross multiply
    1,938,235.80x = 2,907,791.18 × 641,384.87
  4. Step 4: Simplify right side
    1,938,235.80x = 1,865,013,255,035.95
  5. Step 5: Solve for x
    x = 1,865,013,255,035.95/1,938,235.80
  6. Step 6: Final answer
    x = 962,222.07

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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.