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Finding the Fourth Proportional to 456,438.52, 629,881.50 and 255,234.52

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Solution

The fourth proportional to 456,438.52, 629,881.50 and 255,234.52 is: 352,221.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,438.52 : 629,881.50 = 255,234.52 : x
  2. Step 2: Convert to fraction form
    456,438.52/629,881.50 = 255,234.52/x
  3. Step 3: Cross multiply
    456,438.52x = 629,881.50 × 255,234.52
  4. Step 4: Simplify right side
    456,438.52x = 160,767,502,309.38
  5. Step 5: Solve for x
    x = 160,767,502,309.38/456,438.52
  6. Step 6: Final answer
    x = 352,221.59

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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.