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Finding the Fourth Proportional to 1,048,978,712.93, 1,447,595,247.42 and 579,083,895.14

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Solution

The fourth proportional to 1,048,978,712.93, 1,447,595,247.42 and 579,083,895.14 is: 799,138,327.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,048,978,712.93 : 1,447,595,247.42 = 579,083,895.14 : x
  2. Step 2: Convert to fraction form
    1,048,978,712.93/1,447,595,247.42 = 579,083,895.14/x
  3. Step 3: Cross multiply
    1,048,978,712.93x = 1,447,595,247.42 × 579,083,895.14
  4. Step 4: Simplify right side
    1,048,978,712.93x = 838,279,094,451,992,192
  5. Step 5: Solve for x
    x = 838,279,094,451,992,192/1,048,978,712.93
  6. Step 6: Final answer
    x = 799,138,327.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.