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Finding the Fourth Proportional to 917,096,546.30, 1,375,644,819.45 and 917,096,546.30

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Solution

The fourth proportional to 917,096,546.30, 1,375,644,819.45 and 917,096,546.30 is: 1,375,644,819.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,096,546.30 : 1,375,644,819.45 = 917,096,546.30 : x
  2. Step 2: Convert to fraction form
    917,096,546.30/1,375,644,819.45 = 917,096,546.30/x
  3. Step 3: Cross multiply
    917,096,546.30x = 1,375,644,819.45 × 917,096,546.30
  4. Step 4: Simplify right side
    917,096,546.30x = 1,261,599,112,853,082,112
  5. Step 5: Solve for x
    x = 1,261,599,112,853,082,112/917,096,546.30
  6. Step 6: Final answer
    x = 1,375,644,819.45

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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.