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Finding the Fourth Proportional to 907,794.60, 1,361,691.90 and 851,807.40

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Solution

The fourth proportional to 907,794.60, 1,361,691.90 and 851,807.40 is: 1,277,711.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    907,794.60 : 1,361,691.90 = 851,807.40 : x
  2. Step 2: Convert to fraction form
    907,794.60/1,361,691.90 = 851,807.40/x
  3. Step 3: Cross multiply
    907,794.60x = 1,361,691.90 × 851,807.40
  4. Step 4: Simplify right side
    907,794.60x = 1,159,899,236,940.06
  5. Step 5: Solve for x
    x = 1,159,899,236,940.06/907,794.60
  6. Step 6: Final answer
    x = 1,277,711.10

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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.