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Finding the Fourth Proportional to 328,273.62, 492,410.26 and 253,502.79

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Solution

The fourth proportional to 328,273.62, 492,410.26 and 253,502.79 is: 380,254.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,273.62 : 492,410.26 = 253,502.79 : x
  2. Step 2: Convert to fraction form
    328,273.62/492,410.26 = 253,502.79/x
  3. Step 3: Cross multiply
    328,273.62x = 492,410.26 × 253,502.79
  4. Step 4: Simplify right side
    328,273.62x = 124,827,374,734.63
  5. Step 5: Solve for x
    x = 124,827,374,734.63/328,273.62
  6. Step 6: Final answer
    x = 380,254.05

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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.