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Finding the Fourth Proportional to 447,665.29, 618,006.32 and 345,461.11

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Solution

The fourth proportional to 447,665.29, 618,006.32 and 345,461.11 is: 476,912.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,665.29 : 618,006.32 = 345,461.11 : x
  2. Step 2: Convert to fraction form
    447,665.29/618,006.32 = 345,461.11/x
  3. Step 3: Cross multiply
    447,665.29x = 618,006.32 × 345,461.11
  4. Step 4: Simplify right side
    447,665.29x = 213,497,149,294.22
  5. Step 5: Solve for x
    x = 213,497,149,294.22/447,665.29
  6. Step 6: Final answer
    x = 476,912.45

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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.