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Finding the Fourth Proportional to 381,172.96, 525,674.46 and 237,946.24

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Solution

The fourth proportional to 381,172.96, 525,674.46 and 237,946.24 is: 328,150.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,172.96 : 525,674.46 = 237,946.24 : x
  2. Step 2: Convert to fraction form
    381,172.96/525,674.46 = 237,946.24/x
  3. Step 3: Cross multiply
    381,172.96x = 525,674.46 × 237,946.24
  4. Step 4: Simplify right side
    381,172.96x = 125,082,261,221.03
  5. Step 5: Solve for x
    x = 125,082,261,221.03/381,172.96
  6. Step 6: Final answer
    x = 328,150.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.