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Finding the Fourth Proportional to 438,626.03, 605,051.26 and 264,074.72

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Solution

The fourth proportional to 438,626.03, 605,051.26 and 264,074.72 is: 364,270.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,626.03 : 605,051.26 = 264,074.72 : x
  2. Step 2: Convert to fraction form
    438,626.03/605,051.26 = 264,074.72/x
  3. Step 3: Cross multiply
    438,626.03x = 605,051.26 × 264,074.72
  4. Step 4: Simplify right side
    438,626.03x = 159,778,738,384.70
  5. Step 5: Solve for x
    x = 159,778,738,384.70/438,626.03
  6. Step 6: Final answer
    x = 364,270.99

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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.