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Finding the Fourth Proportional to 664,136.13, 996,204.19 and 220,904.13

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Solution

The fourth proportional to 664,136.13, 996,204.19 and 220,904.13 is: 331,356.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,136.13 : 996,204.19 = 220,904.13 : x
  2. Step 2: Convert to fraction form
    664,136.13/996,204.19 = 220,904.13/x
  3. Step 3: Cross multiply
    664,136.13x = 996,204.19 × 220,904.13
  4. Step 4: Simplify right side
    664,136.13x = 220,065,619,894.31
  5. Step 5: Solve for x
    x = 220,065,619,894.31/664,136.13
  6. Step 6: Final answer
    x = 331,356.19

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Half scale
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Double scale
Find fourth proportional to 664,137.13, 996,205.69 and 220,905.13
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.