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Finding the Fourth Proportional to 652,191,264.40, 978,286,896.60 and 445,567,003.60

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Solution

The fourth proportional to 652,191,264.40, 978,286,896.60 and 445,567,003.60 is: 668,350,505.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,191,264.40 : 978,286,896.60 = 445,567,003.60 : x
  2. Step 2: Convert to fraction form
    652,191,264.40/978,286,896.60 = 445,567,003.60/x
  3. Step 3: Cross multiply
    652,191,264.40x = 978,286,896.60 × 445,567,003.60
  4. Step 4: Simplify right side
    652,191,264.40x = 435,892,361,179,205,056
  5. Step 5: Solve for x
    x = 435,892,361,179,205,056/652,191,264.40
  6. Step 6: Final answer
    x = 668,350,505.40

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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.