Home / 784,896.60-1,177,344.90-405,816.60

Finding the Fourth Proportional to 784,896.60, 1,177,344.90 and 405,816.60

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Solution

The fourth proportional to 784,896.60, 1,177,344.90 and 405,816.60 is: 608,724.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    784,896.60 : 1,177,344.90 = 405,816.60 : x
  2. Step 2: Convert to fraction form
    784,896.60/1,177,344.90 = 405,816.60/x
  3. Step 3: Cross multiply
    784,896.60x = 1,177,344.90 × 405,816.60
  4. Step 4: Simplify right side
    784,896.60x = 477,786,104,345.34
  5. Step 5: Solve for x
    x = 477,786,104,345.34/784,896.60
  6. Step 6: Final answer
    x = 608,724.90

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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.