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Finding the Fourth Proportional to 664,089.44, 996,134.16 and 366,461.72

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Solution

The fourth proportional to 664,089.44, 996,134.16 and 366,461.72 is: 549,692.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,089.44 : 996,134.16 = 366,461.72 : x
  2. Step 2: Convert to fraction form
    664,089.44/996,134.16 = 366,461.72/x
  3. Step 3: Cross multiply
    664,089.44x = 996,134.16 × 366,461.72
  4. Step 4: Simplify right side
    664,089.44x = 365,045,037,624.36
  5. Step 5: Solve for x
    x = 365,045,037,624.36/664,089.44
  6. Step 6: Final answer
    x = 549,692.58

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Double scale
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Similar ratio
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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.