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Finding the Fourth Proportional to 328,883.96, 493,343.34 and 104,261.91

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Solution

The fourth proportional to 328,883.96, 493,343.34 and 104,261.91 is: 156,398.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,883.96 : 493,343.34 = 104,261.91 : x
  2. Step 2: Convert to fraction form
    328,883.96/493,343.34 = 104,261.91/x
  3. Step 3: Cross multiply
    328,883.96x = 493,343.34 × 104,261.91
  4. Step 4: Simplify right side
    328,883.96x = 51,436,918,914.18
  5. Step 5: Solve for x
    x = 51,436,918,914.18/328,883.96
  6. Step 6: Final answer
    x = 156,398.38

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1.5x scale

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.