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Finding the Fourth Proportional to 634,495.20, 875,676.56 and 379,846.24

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Solution

The fourth proportional to 634,495.20, 875,676.56 and 379,846.24 is: 524,231.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,495.20 : 875,676.56 = 379,846.24 : x
  2. Step 2: Convert to fraction form
    634,495.20/875,676.56 = 379,846.24/x
  3. Step 3: Cross multiply
    634,495.20x = 875,676.56 × 379,846.24
  4. Step 4: Simplify right side
    634,495.20x = 332,622,448,772.13
  5. Step 5: Solve for x
    x = 332,622,448,772.13/634,495.20
  6. Step 6: Final answer
    x = 524,231.62

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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.