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Finding the Fourth Proportional to 1,160,985,346.90, 1,629,971,135.90 and 1,160,985,346.90

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Solution

The fourth proportional to 1,160,985,346.90, 1,629,971,135.90 and 1,160,985,346.90 is: 1,629,971,135.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,160,985,346.90 : 1,629,971,135.90 = 1,160,985,346.90 : x
  2. Step 2: Convert to fraction form
    1,160,985,346.90/1,629,971,135.90 = 1,160,985,346.90/x
  3. Step 3: Cross multiply
    1,160,985,346.90x = 1,629,971,135.90 × 1,160,985,346.90
  4. Step 4: Simplify right side
    1,160,985,346.90x = 1,892,372,604,649,848,832
  5. Step 5: Solve for x
    x = 1,892,372,604,649,848,832/1,160,985,346.90
  6. Step 6: Final answer
    x = 1,629,971,135.90

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.