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Finding the Fourth Proportional to 335,979.70, 503,969.55 and 125,590.30

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Solution

The fourth proportional to 335,979.70, 503,969.55 and 125,590.30 is: 188,385.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,979.70 : 503,969.55 = 125,590.30 : x
  2. Step 2: Convert to fraction form
    335,979.70/503,969.55 = 125,590.30/x
  3. Step 3: Cross multiply
    335,979.70x = 503,969.55 × 125,590.30
  4. Step 4: Simplify right side
    335,979.70x = 63,293,686,975.37
  5. Step 5: Solve for x
    x = 63,293,686,975.37/335,979.70
  6. Step 6: Final answer
    x = 188,385.45

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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.