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Finding the Fourth Proportional to 283,644.40, 425,466.60 and 143,676.40

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Solution

The fourth proportional to 283,644.40, 425,466.60 and 143,676.40 is: 215,514.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,644.40 : 425,466.60 = 143,676.40 : x
  2. Step 2: Convert to fraction form
    283,644.40/425,466.60 = 143,676.40/x
  3. Step 3: Cross multiply
    283,644.40x = 425,466.60 × 143,676.40
  4. Step 4: Simplify right side
    283,644.40x = 61,129,509,408.24
  5. Step 5: Solve for x
    x = 61,129,509,408.24/283,644.40
  6. Step 6: Final answer
    x = 215,514.60

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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.