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Finding the Fourth Proportional to 1,780,992,459.90, 2,488,293,364.50 and 1,780,992,459.90

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Solution

The fourth proportional to 1,780,992,459.90, 2,488,293,364.50 and 1,780,992,459.90 is: 2,488,293,364.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,780,992,459.90 : 2,488,293,364.50 = 1,780,992,459.90 : x
  2. Step 2: Convert to fraction form
    1,780,992,459.90/2,488,293,364.50 = 1,780,992,459.90/x
  3. Step 3: Cross multiply
    1,780,992,459.90x = 2,488,293,364.50 × 1,780,992,459.90
  4. Step 4: Simplify right side
    1,780,992,459.90x = 4,431,631,720,193,702,400
  5. Step 5: Solve for x
    x = 4,431,631,720,193,702,400/1,780,992,459.90
  6. Step 6: Final answer
    x = 2,488,293,364.50

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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.