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Finding the Fourth Proportional to 328,337.27, 492,505.99 and 79,019.27

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Solution

The fourth proportional to 328,337.27, 492,505.99 and 79,019.27 is: 118,528.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,337.27 : 492,505.99 = 79,019.27 : x
  2. Step 2: Convert to fraction form
    328,337.27/492,505.99 = 79,019.27/x
  3. Step 3: Cross multiply
    328,337.27x = 492,505.99 × 79,019.27
  4. Step 4: Simplify right side
    328,337.27x = 38,917,463,800.43
  5. Step 5: Solve for x
    x = 38,917,463,800.43/328,337.27
  6. Step 6: Final answer
    x = 118,528.93

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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.