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Finding the Fourth Proportional to 448,407,309.89, 618,802,472.93 and 250,168,835.42

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Solution

The fourth proportional to 448,407,309.89, 618,802,472.93 and 250,168,835.42 is: 345,233,207.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,407,309.89 : 618,802,472.93 = 250,168,835.42 : x
  2. Step 2: Convert to fraction form
    448,407,309.89/618,802,472.93 = 250,168,835.42/x
  3. Step 3: Cross multiply
    448,407,309.89x = 618,802,472.93 × 250,168,835.42
  4. Step 4: Simplify right side
    448,407,309.89x = 154,805,094,006,663,296
  5. Step 5: Solve for x
    x = 154,805,094,006,663,296/448,407,309.89
  6. Step 6: Final answer
    x = 345,233,207.83

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.