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Finding the Fourth Proportional to 925,355, 1,387,400.06 and 493,137.56

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Solution

The fourth proportional to 925,355, 1,387,400.06 and 493,137.56 is: 739,369.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    925,355 : 1,387,400.06 = 493,137.56 : x
  2. Step 2: Convert to fraction form
    925,355/1,387,400.06 = 493,137.56/x
  3. Step 3: Cross multiply
    925,355x = 1,387,400.06 × 493,137.56
  4. Step 4: Simplify right side
    925,355x = 684,179,080,332.25
  5. Step 5: Solve for x
    x = 684,179,080,332.25/925,355
  6. Step 6: Final answer
    x = 739,369.30

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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.