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Finding the Fourth Proportional to 298,906,228.80, 448,359,343.20 and 264,894,004.80

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Solution

The fourth proportional to 298,906,228.80, 448,359,343.20 and 264,894,004.80 is: 397,341,007.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,906,228.80 : 448,359,343.20 = 264,894,004.80 : x
  2. Step 2: Convert to fraction form
    298,906,228.80/448,359,343.20 = 264,894,004.80/x
  3. Step 3: Cross multiply
    298,906,228.80x = 448,359,343.20 × 264,894,004.80
  4. Step 4: Simplify right side
    298,906,228.80x = 118,767,702,009,745,648
  5. Step 5: Solve for x
    x = 118,767,702,009,745,648/298,906,228.80
  6. Step 6: Final answer
    x = 397,341,007.20

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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.