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Finding the Fourth Proportional to 339,678.88, 468,751.56 and 186,713.76

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Solution

The fourth proportional to 339,678.88, 468,751.56 and 186,713.76 is: 257,662.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,678.88 : 468,751.56 = 186,713.76 : x
  2. Step 2: Convert to fraction form
    339,678.88/468,751.56 = 186,713.76/x
  3. Step 3: Cross multiply
    339,678.88x = 468,751.56 × 186,713.76
  4. Step 4: Simplify right side
    339,678.88x = 87,522,366,273.47
  5. Step 5: Solve for x
    x = 87,522,366,273.47/339,678.88
  6. Step 6: Final answer
    x = 257,662.08

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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.