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Finding the Fourth Proportional to 880,843.95, 1,321,365.74 and 790,330.57

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Solution

The fourth proportional to 880,843.95, 1,321,365.74 and 790,330.57 is: 1,185,585.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,843.95 : 1,321,365.74 = 790,330.57 : x
  2. Step 2: Convert to fraction form
    880,843.95/1,321,365.74 = 790,330.57/x
  3. Step 3: Cross multiply
    880,843.95x = 1,321,365.74 × 790,330.57
  4. Step 4: Simplify right side
    880,843.95x = 1,044,315,731,217.60
  5. Step 5: Solve for x
    x = 1,044,315,731,217.60/880,843.95
  6. Step 6: Final answer
    x = 1,185,585.41

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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.