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Finding the Fourth Proportional to 996,909,738.70, 1,495,364,608.05 and 670,392,388.30

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Solution

The fourth proportional to 996,909,738.70, 1,495,364,608.05 and 670,392,388.30 is: 1,005,588,582.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    996,909,738.70 : 1,495,364,608.05 = 670,392,388.30 : x
  2. Step 2: Convert to fraction form
    996,909,738.70/1,495,364,608.05 = 670,392,388.30/x
  3. Step 3: Cross multiply
    996,909,738.70x = 1,495,364,608.05 × 670,392,388.30
  4. Step 4: Simplify right side
    996,909,738.70x = 1,002,481,050,969,932,800
  5. Step 5: Solve for x
    x = 1,002,481,050,969,932,800/996,909,738.70
  6. Step 6: Final answer
    x = 1,005,588,582.45

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1.5x scale

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.