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Finding the Fourth Proportional to 312,191.80, 466,905.30 and 262,425.40

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Solution

The fourth proportional to 312,191.80, 466,905.30 and 262,425.40 is: 392,476.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,191.80 : 466,905.30 = 262,425.40 : x
  2. Step 2: Convert to fraction form
    312,191.80/466,905.30 = 262,425.40/x
  3. Step 3: Cross multiply
    312,191.80x = 466,905.30 × 262,425.40
  4. Step 4: Simplify right side
    312,191.80x = 122,527,810,114.62
  5. Step 5: Solve for x
    x = 122,527,810,114.62/312,191.80
  6. Step 6: Final answer
    x = 392,476.07

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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.