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Finding the Fourth Proportional to 469,021.44, 647,247.06 and 254,155.98

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Solution

The fourth proportional to 469,021.44, 647,247.06 and 254,155.98 is: 350,733.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,021.44 : 647,247.06 = 254,155.98 : x
  2. Step 2: Convert to fraction form
    469,021.44/647,247.06 = 254,155.98/x
  3. Step 3: Cross multiply
    469,021.44x = 647,247.06 × 254,155.98
  4. Step 4: Simplify right side
    469,021.44x = 164,501,710,836.42
  5. Step 5: Solve for x
    x = 164,501,710,836.42/469,021.44
  6. Step 6: Final answer
    x = 350,733.88

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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.