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Finding the Fourth Proportional to 850,739,964.40, 1,276,109,946.60 and 850,739,964.40

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Solution

The fourth proportional to 850,739,964.40, 1,276,109,946.60 and 850,739,964.40 is: 1,276,109,946.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    850,739,964.40 : 1,276,109,946.60 = 850,739,964.40 : x
  2. Step 2: Convert to fraction form
    850,739,964.40/1,276,109,946.60 = 850,739,964.40/x
  3. Step 3: Cross multiply
    850,739,964.40x = 1,276,109,946.60 × 850,739,964.40
  4. Step 4: Simplify right side
    850,739,964.40x = 1,085,637,730,540,969,728
  5. Step 5: Solve for x
    x = 1,085,637,730,540,969,728/850,739,964.40
  6. Step 6: Final answer
    x = 1,276,109,946.60

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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.