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Finding the Fourth Proportional to 328,381.46, 492,419.10 and 170,567.54

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Solution

The fourth proportional to 328,381.46, 492,419.10 and 170,567.54 is: 255,771.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,381.46 : 492,419.10 = 170,567.54 : x
  2. Step 2: Convert to fraction form
    328,381.46/492,419.10 = 170,567.54/x
  3. Step 3: Cross multiply
    328,381.46x = 492,419.10 × 170,567.54
  4. Step 4: Simplify right side
    328,381.46x = 83,990,714,536.01
  5. Step 5: Solve for x
    x = 83,990,714,536.01/328,381.46
  6. Step 6: Final answer
    x = 255,771.79

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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.