Home / 736,905.80-1,105,358.70-263,606.60

Finding the Fourth Proportional to 736,905.80, 1,105,358.70 and 263,606.60

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Solution

The fourth proportional to 736,905.80, 1,105,358.70 and 263,606.60 is: 395,409.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    736,905.80 : 1,105,358.70 = 263,606.60 : x
  2. Step 2: Convert to fraction form
    736,905.80/1,105,358.70 = 263,606.60/x
  3. Step 3: Cross multiply
    736,905.80x = 1,105,358.70 × 263,606.60
  4. Step 4: Simplify right side
    736,905.80x = 291,379,848,687.42
  5. Step 5: Solve for x
    x = 291,379,848,687.42/736,905.80
  6. Step 6: Final answer
    x = 395,409.90

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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.