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Finding the Fourth Proportional to 493,266.60, 739,899.90 and 448,943.40

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Solution

The fourth proportional to 493,266.60, 739,899.90 and 448,943.40 is: 673,415.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,266.60 : 739,899.90 = 448,943.40 : x
  2. Step 2: Convert to fraction form
    493,266.60/739,899.90 = 448,943.40/x
  3. Step 3: Cross multiply
    493,266.60x = 739,899.90 × 448,943.40
  4. Step 4: Simplify right side
    493,266.60x = 332,173,176,765.66
  5. Step 5: Solve for x
    x = 332,173,176,765.66/493,266.60
  6. Step 6: Final answer
    x = 673,415.10

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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.