Home / 1,328,758.74-1,993,453.47-430,200.54

Finding the Fourth Proportional to 1,328,758.74, 1,993,453.47 and 430,200.54

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Solution

The fourth proportional to 1,328,758.74, 1,993,453.47 and 430,200.54 is: 645,402.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,758.74 : 1,993,453.47 = 430,200.54 : x
  2. Step 2: Convert to fraction form
    1,328,758.74/1,993,453.47 = 430,200.54/x
  3. Step 3: Cross multiply
    1,328,758.74x = 1,993,453.47 × 430,200.54
  4. Step 4: Simplify right side
    1,328,758.74x = 857,584,759,258.87
  5. Step 5: Solve for x
    x = 857,584,759,258.87/1,328,758.74
  6. Step 6: Final answer
    x = 645,402.91

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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.