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Finding the Fourth Proportional to 328,381.40, 492,572.10 and 151,037.57

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Solution

The fourth proportional to 328,381.40, 492,572.10 and 151,037.57 is: 226,556.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,381.40 : 492,572.10 = 151,037.57 : x
  2. Step 2: Convert to fraction form
    328,381.40/492,572.10 = 151,037.57/x
  3. Step 3: Cross multiply
    328,381.40x = 492,572.10 × 151,037.57
  4. Step 4: Simplify right side
    328,381.40x = 74,396,894,265.23
  5. Step 5: Solve for x
    x = 74,396,894,265.23/328,381.40
  6. Step 6: Final answer
    x = 226,556.36

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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.