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Finding the Fourth Proportional to 493,628.40, 741,220.20 and 283,676.40

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Solution

The fourth proportional to 493,628.40, 741,220.20 and 283,676.40 is: 425,961.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,628.40 : 741,220.20 = 283,676.40 : x
  2. Step 2: Convert to fraction form
    493,628.40/741,220.20 = 283,676.40/x
  3. Step 3: Cross multiply
    493,628.40x = 741,220.20 × 283,676.40
  4. Step 4: Simplify right side
    493,628.40x = 210,266,677,943.28
  5. Step 5: Solve for x
    x = 210,266,677,943.28/493,628.40
  6. Step 6: Final answer
    x = 425,961.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.