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Finding the Fourth Proportional to 298,954,444.60, 448,431,666.90 and 270,256,630.60

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Solution

The fourth proportional to 298,954,444.60, 448,431,666.90 and 270,256,630.60 is: 405,384,945.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,954,444.60 : 448,431,666.90 = 270,256,630.60 : x
  2. Step 2: Convert to fraction form
    298,954,444.60/448,431,666.90 = 270,256,630.60/x
  3. Step 3: Cross multiply
    298,954,444.60x = 448,431,666.90 × 270,256,630.60
  4. Step 4: Simplify right side
    298,954,444.60x = 121,191,631,350,735,552
  5. Step 5: Solve for x
    x = 121,191,631,350,735,552/298,954,444.60
  6. Step 6: Final answer
    x = 405,384,945.90

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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.