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Finding the Fourth Proportional to 448,134, 618,437.88 and 246,942.96

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Solution

The fourth proportional to 448,134, 618,437.88 and 246,942.96 is: 340,788.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,134 : 618,437.88 = 246,942.96 : x
  2. Step 2: Convert to fraction form
    448,134/618,437.88 = 246,942.96/x
  3. Step 3: Cross multiply
    448,134x = 618,437.88 × 246,942.96
  4. Step 4: Simplify right side
    448,134x = 152,718,880,663.33
  5. Step 5: Solve for x
    x = 152,718,880,663.33/448,134
  6. Step 6: Final answer
    x = 340,788.43

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1.5x scale

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.