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Finding the Fourth Proportional to 853,041,753.60, 1,279,562,630.40 and 853,041,753.60

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Solution

The fourth proportional to 853,041,753.60, 1,279,562,630.40 and 853,041,753.60 is: 1,279,562,630.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,041,753.60 : 1,279,562,630.40 = 853,041,753.60 : x
  2. Step 2: Convert to fraction form
    853,041,753.60/1,279,562,630.40 = 853,041,753.60/x
  3. Step 3: Cross multiply
    853,041,753.60x = 1,279,562,630.40 × 853,041,753.60
  4. Step 4: Simplify right side
    853,041,753.60x = 1,091,520,350,077,444,736
  5. Step 5: Solve for x
    x = 1,091,520,350,077,444,736/853,041,753.60
  6. Step 6: Final answer
    x = 1,279,562,630.40

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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.