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Finding the Fourth Proportional to 590,992, 886,488 and 147,760

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Solution

The fourth proportional to 590,992, 886,488 and 147,760 is: 221,640

Step by Step Solution

  1. Step 1: Write the proportion equation
    590,992 : 886,488 = 147,760 : x
  2. Step 2: Convert to fraction form
    590,992/886,488 = 147,760/x
  3. Step 3: Cross multiply
    590,992x = 886,488 × 147,760
  4. Step 4: Simplify right side
    590,992x = 130,987,466,880
  5. Step 5: Solve for x
    x = 130,987,466,880/590,992
  6. Step 6: Final answer
    x = 221,640

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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.