Home / 1,328,834.61-1,993,542.60-430,367.17

Finding the Fourth Proportional to 1,328,834.61, 1,993,542.60 and 430,367.17

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Solution

The fourth proportional to 1,328,834.61, 1,993,542.60 and 430,367.17 is: 645,644.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,834.61 : 1,993,542.60 = 430,367.17 : x
  2. Step 2: Convert to fraction form
    1,328,834.61/1,993,542.60 = 430,367.17/x
  3. Step 3: Cross multiply
    1,328,834.61x = 1,993,542.60 × 430,367.17
  4. Step 4: Simplify right side
    1,328,834.61x = 857,955,291,142.25
  5. Step 5: Solve for x
    x = 857,955,291,142.25/1,328,834.61
  6. Step 6: Final answer
    x = 645,644.90

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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.