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Finding the Fourth Proportional to 444,430.36, 612,676.38 and 316,884.76

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Solution

The fourth proportional to 444,430.36, 612,676.38 and 316,884.76 is: 436,846.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,430.36 : 612,676.38 = 316,884.76 : x
  2. Step 2: Convert to fraction form
    444,430.36/612,676.38 = 316,884.76/x
  3. Step 3: Cross multiply
    444,430.36x = 612,676.38 × 316,884.76
  4. Step 4: Simplify right side
    444,430.36x = 194,147,807,633.97
  5. Step 5: Solve for x
    x = 194,147,807,633.97/444,430.36
  6. Step 6: Final answer
    x = 436,846.41

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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.