Home / 697,772.80-1,046,659.20-199,136.80

Finding the Fourth Proportional to 697,772.80, 1,046,659.20 and 199,136.80

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Solution

The fourth proportional to 697,772.80, 1,046,659.20 and 199,136.80 is: 298,705.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    697,772.80 : 1,046,659.20 = 199,136.80 : x
  2. Step 2: Convert to fraction form
    697,772.80/1,046,659.20 = 199,136.80/x
  3. Step 3: Cross multiply
    697,772.80x = 1,046,659.20 × 199,136.80
  4. Step 4: Simplify right side
    697,772.80x = 208,428,363,778.56
  5. Step 5: Solve for x
    x = 208,428,363,778.56/697,772.80
  6. Step 6: Final answer
    x = 298,705.20

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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.