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Finding the Fourth Proportional to 438,622.52, 605,046.42 and 264,071.21

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Solution

The fourth proportional to 438,622.52, 605,046.42 and 264,071.21 is: 364,266.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,622.52 : 605,046.42 = 264,071.21 : x
  2. Step 2: Convert to fraction form
    438,622.52/605,046.42 = 264,071.21/x
  3. Step 3: Cross multiply
    438,622.52x = 605,046.42 × 264,071.21
  4. Step 4: Simplify right side
    438,622.52x = 159,775,340,235.57
  5. Step 5: Solve for x
    x = 159,775,340,235.57/438,622.52
  6. Step 6: Final answer
    x = 364,266.16

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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.