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Finding the Fourth Proportional to 404,632.70, 558,050.31 and 243,457.64

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Solution

The fourth proportional to 404,632.70, 558,050.31 and 243,457.64 is: 335,765.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,632.70 : 558,050.31 = 243,457.64 : x
  2. Step 2: Convert to fraction form
    404,632.70/558,050.31 = 243,457.64/x
  3. Step 3: Cross multiply
    404,632.70x = 558,050.31 × 243,457.64
  4. Step 4: Simplify right side
    404,632.70x = 135,861,608,683.62
  5. Step 5: Solve for x
    x = 135,861,608,683.62/404,632.70
  6. Step 6: Final answer
    x = 335,765.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.