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Finding the Fourth Proportional to 436,474.40, 654,711.60 and 156,000.80

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Solution

The fourth proportional to 436,474.40, 654,711.60 and 156,000.80 is: 234,001.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,474.40 : 654,711.60 = 156,000.80 : x
  2. Step 2: Convert to fraction form
    436,474.40/654,711.60 = 156,000.80/x
  3. Step 3: Cross multiply
    436,474.40x = 654,711.60 × 156,000.80
  4. Step 4: Simplify right side
    436,474.40x = 102,135,533,369.28
  5. Step 5: Solve for x
    x = 102,135,533,369.28/436,474.40
  6. Step 6: Final answer
    x = 234,001.20

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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.