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Finding the Fourth Proportional to 444,315.48, 612,517.56 and 316,769.64

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Solution

The fourth proportional to 444,315.48, 612,517.56 and 316,769.64 is: 436,687.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,315.48 : 612,517.56 = 316,769.64 : x
  2. Step 2: Convert to fraction form
    444,315.48/612,517.56 = 316,769.64/x
  3. Step 3: Cross multiply
    444,315.48x = 612,517.56 × 316,769.64
  4. Step 4: Simplify right side
    444,315.48x = 194,026,966,974.88
  5. Step 5: Solve for x
    x = 194,026,966,974.88/444,315.48
  6. Step 6: Final answer
    x = 436,687.39

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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.