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Finding the Fourth Proportional to 1,048,978,712.67, 1,447,595,247.07 and 579,083,894.88

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Solution

The fourth proportional to 1,048,978,712.67, 1,447,595,247.07 and 579,083,894.88 is: 799,138,327.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,048,978,712.67 : 1,447,595,247.07 = 579,083,894.88 : x
  2. Step 2: Convert to fraction form
    1,048,978,712.67/1,447,595,247.07 = 579,083,894.88/x
  3. Step 3: Cross multiply
    1,048,978,712.67x = 1,447,595,247.07 × 579,083,894.88
  4. Step 4: Simplify right side
    1,048,978,712.67x = 838,279,093,883,071,488
  5. Step 5: Solve for x
    x = 838,279,093,883,071,488/1,048,978,712.67
  6. Step 6: Final answer
    x = 799,138,327.36

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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.