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Finding the Fourth Proportional to 907,797.60, 1,361,696.40 and 851,810.40

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Solution

The fourth proportional to 907,797.60, 1,361,696.40 and 851,810.40 is: 1,277,715.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    907,797.60 : 1,361,696.40 = 851,810.40 : x
  2. Step 2: Convert to fraction form
    907,797.60/1,361,696.40 = 851,810.40/x
  3. Step 3: Cross multiply
    907,797.60x = 1,361,696.40 × 851,810.40
  4. Step 4: Simplify right side
    907,797.60x = 1,159,907,155,162.56
  5. Step 5: Solve for x
    x = 1,159,907,155,162.56/907,797.60
  6. Step 6: Final answer
    x = 1,277,715.60

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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.