Home / 1,096,100.60-1,512,618.29-643,391.60

Finding the Fourth Proportional to 1,096,100.60, 1,512,618.29 and 643,391.60

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Solution

The fourth proportional to 1,096,100.60, 1,512,618.29 and 643,391.60 is: 887,880.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,096,100.60 : 1,512,618.29 = 643,391.60 : x
  2. Step 2: Convert to fraction form
    1,096,100.60/1,512,618.29 = 643,391.60/x
  3. Step 3: Cross multiply
    1,096,100.60x = 1,512,618.29 × 643,391.60
  4. Step 4: Simplify right side
    1,096,100.60x = 973,205,901,792.36
  5. Step 5: Solve for x
    x = 973,205,901,792.36/1,096,100.60
  6. Step 6: Final answer
    x = 887,880.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.