Home / 699,415.80-1,049,123.70-193,975.80

Finding the Fourth Proportional to 699,415.80, 1,049,123.70 and 193,975.80

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Solution

The fourth proportional to 699,415.80, 1,049,123.70 and 193,975.80 is: 290,963.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,415.80 : 1,049,123.70 = 193,975.80 : x
  2. Step 2: Convert to fraction form
    699,415.80/1,049,123.70 = 193,975.80/x
  3. Step 3: Cross multiply
    699,415.80x = 1,049,123.70 × 193,975.80
  4. Step 4: Simplify right side
    699,415.80x = 203,504,609,006.46
  5. Step 5: Solve for x
    x = 203,504,609,006.46/699,415.80
  6. Step 6: Final answer
    x = 290,963.70

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Half scale
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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.