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Finding the Fourth Proportional to 328,514.70, 492,772.05 and 328,514.70

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Solution

The fourth proportional to 328,514.70, 492,772.05 and 328,514.70 is: 492,772.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,514.70 : 492,772.05 = 328,514.70 : x
  2. Step 2: Convert to fraction form
    328,514.70/492,772.05 = 328,514.70/x
  3. Step 3: Cross multiply
    328,514.70x = 492,772.05 × 328,514.70
  4. Step 4: Simplify right side
    328,514.70x = 161,882,862,174.14
  5. Step 5: Solve for x
    x = 161,882,862,174.14/328,514.70
  6. Step 6: Final answer
    x = 492,772.05

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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.