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Finding the Fourth Proportional to 328,301.40, 492,468.30 and 170,837.40

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Solution

The fourth proportional to 328,301.40, 492,468.30 and 170,837.40 is: 256,264.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,301.40 : 492,468.30 = 170,837.40 : x
  2. Step 2: Convert to fraction form
    328,301.40/492,468.30 = 170,837.40/x
  3. Step 3: Cross multiply
    328,301.40x = 492,468.30 × 170,837.40
  4. Step 4: Simplify right side
    328,301.40x = 84,132,003,954.42
  5. Step 5: Solve for x
    x = 84,132,003,954.42/328,301.40
  6. Step 6: Final answer
    x = 256,264.53

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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.