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Finding the Fourth Proportional to 787,968,090.30, 1,104,969,311.70 and 787,968,090.30

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Solution

The fourth proportional to 787,968,090.30, 1,104,969,311.70 and 787,968,090.30 is: 1,104,969,311.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,968,090.30 : 1,104,969,311.70 = 787,968,090.30 : x
  2. Step 2: Convert to fraction form
    787,968,090.30/1,104,969,311.70 = 787,968,090.30/x
  3. Step 3: Cross multiply
    787,968,090.30x = 1,104,969,311.70 × 787,968,090.30
  4. Step 4: Simplify right side
    787,968,090.30x = 870,680,558,380,354,432
  5. Step 5: Solve for x
    x = 870,680,558,380,354,432/787,968,090.30
  6. Step 6: Final answer
    x = 1,104,969,311.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.