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Finding the Fourth Proportional to 1,048,992, 1,573,493.76 and 261,024

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Solution

The fourth proportional to 1,048,992, 1,573,493.76 and 261,024 is: 391,537.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,048,992 : 1,573,493.76 = 261,024 : x
  2. Step 2: Convert to fraction form
    1,048,992/1,573,493.76 = 261,024/x
  3. Step 3: Cross multiply
    1,048,992x = 1,573,493.76 × 261,024
  4. Step 4: Simplify right side
    1,048,992x = 410,719,635,210.24
  5. Step 5: Solve for x
    x = 410,719,635,210.24/1,048,992
  6. Step 6: Final answer
    x = 391,537.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.