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Finding the Fourth Proportional to 448,155, 618,466.86 and 246,963.96

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Solution

The fourth proportional to 448,155, 618,466.86 and 246,963.96 is: 340,817.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,155 : 618,466.86 = 246,963.96 : x
  2. Step 2: Convert to fraction form
    448,155/618,466.86 = 246,963.96/x
  3. Step 3: Cross multiply
    448,155x = 618,466.86 × 246,963.96
  4. Step 4: Simplify right side
    448,155x = 152,739,024,874.37
  5. Step 5: Solve for x
    x = 152,739,024,874.37/448,155
  6. Step 6: Final answer
    x = 340,817.41

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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.