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Finding the Fourth Proportional to 297,893,721.60, 445,990,276.80 and 297,893,721.60

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Solution

The fourth proportional to 297,893,721.60, 445,990,276.80 and 297,893,721.60 is: 445,990,276.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,893,721.60 : 445,990,276.80 = 297,893,721.60 : x
  2. Step 2: Convert to fraction form
    297,893,721.60/445,990,276.80 = 297,893,721.60/x
  3. Step 3: Cross multiply
    297,893,721.60x = 445,990,276.80 × 297,893,721.60
  4. Step 4: Simplify right side
    297,893,721.60x = 132,857,703,353,366,160
  5. Step 5: Solve for x
    x = 132,857,703,353,366,160/297,893,721.60
  6. Step 6: Final answer
    x = 445,990,276.80

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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.