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Finding the Fourth Proportional to 444,286.05, 612,477.06 and 316,740.21

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Solution

The fourth proportional to 444,286.05, 612,477.06 and 316,740.21 is: 436,646.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,286.05 : 612,477.06 = 316,740.21 : x
  2. Step 2: Convert to fraction form
    444,286.05/612,477.06 = 316,740.21/x
  3. Step 3: Cross multiply
    444,286.05x = 612,477.06 × 316,740.21
  4. Step 4: Simplify right side
    444,286.05x = 193,996,112,604.58
  5. Step 5: Solve for x
    x = 193,996,112,604.58/444,286.05
  6. Step 6: Final answer
    x = 436,646.87

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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.