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Finding the Fourth Proportional to 328,554.90, 492,758 and 150,891.12

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Solution

The fourth proportional to 328,554.90, 492,758 and 150,891.12 is: 226,302.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,554.90 : 492,758 = 150,891.12 : x
  2. Step 2: Convert to fraction form
    328,554.90/492,758 = 150,891.12/x
  3. Step 3: Cross multiply
    328,554.90x = 492,758 × 150,891.12
  4. Step 4: Simplify right side
    328,554.90x = 74,352,806,508.96
  5. Step 5: Solve for x
    x = 74,352,806,508.96/328,554.90
  6. Step 6: Final answer
    x = 226,302.53

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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.