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Finding the Fourth Proportional to 1,196,862.88, 1,793,583.60 and 878,824.48

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Solution

The fourth proportional to 1,196,862.88, 1,793,583.60 and 878,824.48 is: 1,316,980.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,196,862.88 : 1,793,583.60 = 878,824.48 : x
  2. Step 2: Convert to fraction form
    1,196,862.88/1,793,583.60 = 878,824.48/x
  3. Step 3: Cross multiply
    1,196,862.88x = 1,793,583.60 × 878,824.48
  4. Step 4: Simplify right side
    1,196,862.88x = 1,576,245,174,606.53
  5. Step 5: Solve for x
    x = 1,576,245,174,606.53/1,196,862.88
  6. Step 6: Final answer
    x = 1,316,980.58

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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.