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Finding the Fourth Proportional to 444,285.81, 612,476.73 and 316,739.97

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Solution

The fourth proportional to 444,285.81, 612,476.73 and 316,739.97 is: 436,646.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,285.81 : 612,476.73 = 316,739.97 : x
  2. Step 2: Convert to fraction form
    444,285.81/612,476.73 = 316,739.97/x
  3. Step 3: Cross multiply
    444,285.81x = 612,476.73 × 316,739.97
  4. Step 4: Simplify right side
    444,285.81x = 193,995,861,085.90
  5. Step 5: Solve for x
    x = 193,995,861,085.90/444,285.81
  6. Step 6: Final answer
    x = 436,646.54

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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.