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Finding the Fourth Proportional to 873,653.80, 1,310,480.70 and 695,194.60

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Solution

The fourth proportional to 873,653.80, 1,310,480.70 and 695,194.60 is: 1,042,791.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,653.80 : 1,310,480.70 = 695,194.60 : x
  2. Step 2: Convert to fraction form
    873,653.80/1,310,480.70 = 695,194.60/x
  3. Step 3: Cross multiply
    873,653.80x = 1,310,480.70 × 695,194.60
  4. Step 4: Simplify right side
    873,653.80x = 911,039,106,044.22
  5. Step 5: Solve for x
    x = 911,039,106,044.22/873,653.80
  6. Step 6: Final answer
    x = 1,042,791.90

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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.