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Finding the Fourth Proportional to 938,326.83, 1,295,636.36 and 866,680.71

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Solution

The fourth proportional to 938,326.83, 1,295,636.36 and 866,680.71 is: 1,196,707.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    938,326.83 : 1,295,636.36 = 866,680.71 : x
  2. Step 2: Convert to fraction form
    938,326.83/1,295,636.36 = 866,680.71/x
  3. Step 3: Cross multiply
    938,326.83x = 1,295,636.36 × 866,680.71
  4. Step 4: Simplify right side
    938,326.83x = 1,122,903,036,053.21
  5. Step 5: Solve for x
    x = 1,122,903,036,053.21/938,326.83
  6. Step 6: Final answer
    x = 1,196,707.80

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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.