Home / 1,328,837.01-1,993,546.21-430,369.57

Finding the Fourth Proportional to 1,328,837.01, 1,993,546.21 and 430,369.57

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Solution

The fourth proportional to 1,328,837.01, 1,993,546.21 and 430,369.57 is: 645,648.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,837.01 : 1,993,546.21 = 430,369.57 : x
  2. Step 2: Convert to fraction form
    1,328,837.01/1,993,546.21 = 430,369.57/x
  3. Step 3: Cross multiply
    1,328,837.01x = 1,993,546.21 × 430,369.57
  4. Step 4: Simplify right side
    1,328,837.01x = 857,961,615,205.10
  5. Step 5: Solve for x
    x = 857,961,615,205.10/1,328,837.01
  6. Step 6: Final answer
    x = 645,648.49

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1.5x scale

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.