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Finding the Fourth Proportional to 467,830.75, 645,605.97 and 252,970.30

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Solution

The fourth proportional to 467,830.75, 645,605.97 and 252,970.30 is: 349,098.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    467,830.75 : 645,605.97 = 252,970.30 : x
  2. Step 2: Convert to fraction form
    467,830.75/645,605.97 = 252,970.30/x
  3. Step 3: Cross multiply
    467,830.75x = 645,605.97 × 252,970.30
  4. Step 4: Simplify right side
    467,830.75x = 163,319,135,912.69
  5. Step 5: Solve for x
    x = 163,319,135,912.69/467,830.75
  6. Step 6: Final answer
    x = 349,098.76

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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.