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Finding the Fourth Proportional to 339,816.48, 468,958.80 and 186,866.40

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Solution

The fourth proportional to 339,816.48, 468,958.80 and 186,866.40 is: 257,882.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,816.48 : 468,958.80 = 186,866.40 : x
  2. Step 2: Convert to fraction form
    339,816.48/468,958.80 = 186,866.40/x
  3. Step 3: Cross multiply
    339,816.48x = 468,958.80 × 186,866.40
  4. Step 4: Simplify right side
    339,816.48x = 87,632,642,704.32
  5. Step 5: Solve for x
    x = 87,632,642,704.32/339,816.48
  6. Step 6: Final answer
    x = 257,882.26

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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.