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Finding the Fourth Proportional to 438,999.48, 605,821.14 and 237,795.48

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Solution

The fourth proportional to 438,999.48, 605,821.14 and 237,795.48 is: 328,158.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,999.48 : 605,821.14 = 237,795.48 : x
  2. Step 2: Convert to fraction form
    438,999.48/605,821.14 = 237,795.48/x
  3. Step 3: Cross multiply
    438,999.48x = 605,821.14 × 237,795.48
  4. Step 4: Simplify right side
    438,999.48x = 144,061,528,780.45
  5. Step 5: Solve for x
    x = 144,061,528,780.45/438,999.48
  6. Step 6: Final answer
    x = 328,158.77

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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.