Home / 1,328,813.16-1,993,537.26-430,255.91

Finding the Fourth Proportional to 1,328,813.16, 1,993,537.26 and 430,255.91

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Solution

The fourth proportional to 1,328,813.16, 1,993,537.26 and 430,255.91 is: 645,486.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,813.16 : 1,993,537.26 = 430,255.91 : x
  2. Step 2: Convert to fraction form
    1,328,813.16/1,993,537.26 = 430,255.91/x
  3. Step 3: Cross multiply
    1,328,813.16x = 1,993,537.26 × 430,255.91
  4. Step 4: Simplify right side
    1,328,813.16x = 857,731,177,952.52
  5. Step 5: Solve for x
    x = 857,731,177,952.52/1,328,813.16
  6. Step 6: Final answer
    x = 645,486.67

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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.