Home / 1,328,853.60-1,991,919.60-653,896.80

Finding the Fourth Proportional to 1,328,853.60, 1,991,919.60 and 653,896.80

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Solution

The fourth proportional to 1,328,853.60, 1,991,919.60 and 653,896.80 is: 980,175.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,853.60 : 1,991,919.60 = 653,896.80 : x
  2. Step 2: Convert to fraction form
    1,328,853.60/1,991,919.60 = 653,896.80/x
  3. Step 3: Cross multiply
    1,328,853.60x = 1,991,919.60 × 653,896.80
  4. Step 4: Simplify right side
    1,328,853.60x = 1,302,509,852,297.28
  5. Step 5: Solve for x
    x = 1,302,509,852,297.28/1,328,853.60
  6. Step 6: Final answer
    x = 980,175.58

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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.