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Finding the Fourth Proportional to 664,232.60, 996,348.90 and 190,890.20

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Solution

The fourth proportional to 664,232.60, 996,348.90 and 190,890.20 is: 286,335.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,232.60 : 996,348.90 = 190,890.20 : x
  2. Step 2: Convert to fraction form
    664,232.60/996,348.90 = 190,890.20/x
  3. Step 3: Cross multiply
    664,232.60x = 996,348.90 × 190,890.20
  4. Step 4: Simplify right side
    664,232.60x = 190,193,240,790.78
  5. Step 5: Solve for x
    x = 190,193,240,790.78/664,232.60
  6. Step 6: Final answer
    x = 286,335.30

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Half scale
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Double scale
Find fourth proportional to 664,233.60, 996,350.40 and 190,891.20
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.