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Finding the Fourth Proportional to 1,024,978,811.40, 1,414,463,716.53 and 555,069,379.02

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Solution

The fourth proportional to 1,024,978,811.40, 1,414,463,716.53 and 555,069,379.02 is: 765,991,928.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,024,978,811.40 : 1,414,463,716.53 = 555,069,379.02 : x
  2. Step 2: Convert to fraction form
    1,024,978,811.40/1,414,463,716.53 = 555,069,379.02/x
  3. Step 3: Cross multiply
    1,024,978,811.40x = 1,414,463,716.53 × 555,069,379.02
  4. Step 4: Simplify right side
    1,024,978,811.40x = 785,125,496,780,628,352
  5. Step 5: Solve for x
    x = 785,125,496,780,628,352/1,024,978,811.40
  6. Step 6: Final answer
    x = 765,991,928.86

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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.