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Finding the Fourth Proportional to 439,114.13, 605,978.10 and 237,910.13

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Solution

The fourth proportional to 439,114.13, 605,978.10 and 237,910.13 is: 328,316.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,114.13 : 605,978.10 = 237,910.13 : x
  2. Step 2: Convert to fraction form
    439,114.13/605,978.10 = 237,910.13/x
  3. Step 3: Cross multiply
    439,114.13x = 605,978.10 × 237,910.13
  4. Step 4: Simplify right side
    439,114.13x = 144,168,325,518.26
  5. Step 5: Solve for x
    x = 144,168,325,518.26/439,114.13
  6. Step 6: Final answer
    x = 328,316.30

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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.