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Finding the Fourth Proportional to 275,429,387.40, 413,144,081.10 and 275,429,387.40

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Solution

The fourth proportional to 275,429,387.40, 413,144,081.10 and 275,429,387.40 is: 413,144,081.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,429,387.40 : 413,144,081.10 = 275,429,387.40 : x
  2. Step 2: Convert to fraction form
    275,429,387.40/413,144,081.10 = 275,429,387.40/x
  3. Step 3: Cross multiply
    275,429,387.40x = 413,144,081.10 × 275,429,387.40
  4. Step 4: Simplify right side
    275,429,387.40x = 113,792,021,165,308,912
  5. Step 5: Solve for x
    x = 113,792,021,165,308,912/275,429,387.40
  6. Step 6: Final answer
    x = 413,144,081.10

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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.