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Finding the Fourth Proportional to 328,459.20, 492,761.70 and 150,923.40

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Solution

The fourth proportional to 328,459.20, 492,761.70 and 150,923.40 is: 226,418.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,459.20 : 492,761.70 = 150,923.40 : x
  2. Step 2: Convert to fraction form
    328,459.20/492,761.70 = 150,923.40/x
  3. Step 3: Cross multiply
    328,459.20x = 492,761.70 × 150,923.40
  4. Step 4: Simplify right side
    328,459.20x = 74,369,271,153.78
  5. Step 5: Solve for x
    x = 74,369,271,153.78/328,459.20
  6. Step 6: Final answer
    x = 226,418.60

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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.