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Finding the Fourth Proportional to 448,079.14, 618,577.76 and 303,647.96

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Solution

The fourth proportional to 448,079.14, 618,577.76 and 303,647.96 is: 419,189.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,079.14 : 618,577.76 = 303,647.96 : x
  2. Step 2: Convert to fraction form
    448,079.14/618,577.76 = 303,647.96/x
  3. Step 3: Cross multiply
    448,079.14x = 618,577.76 × 303,647.96
  4. Step 4: Simplify right side
    448,079.14x = 187,829,874,925.37
  5. Step 5: Solve for x
    x = 187,829,874,925.37/448,079.14
  6. Step 6: Final answer
    x = 419,189.06

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Why These Related Problems?

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