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Finding the Fourth Proportional to 448,061.21, 618,324.13 and 246,857.21

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Solution

The fourth proportional to 448,061.21, 618,324.13 and 246,857.21 is: 340,662.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,061.21 : 618,324.13 = 246,857.21 : x
  2. Step 2: Convert to fraction form
    448,061.21/618,324.13 = 246,857.21/x
  3. Step 3: Cross multiply
    448,061.21x = 618,324.13 × 246,857.21
  4. Step 4: Simplify right side
    448,061.21x = 152,637,769,607.48
  5. Step 5: Solve for x
    x = 152,637,769,607.48/448,061.21
  6. Step 6: Final answer
    x = 340,662.76

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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.