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Finding the Fourth Proportional to 336,109.70, 504,164.55 and 305,005.70

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Solution

The fourth proportional to 336,109.70, 504,164.55 and 305,005.70 is: 457,508.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,109.70 : 504,164.55 = 305,005.70 : x
  2. Step 2: Convert to fraction form
    336,109.70/504,164.55 = 305,005.70/x
  3. Step 3: Cross multiply
    336,109.70x = 504,164.55 × 305,005.70
  4. Step 4: Simplify right side
    336,109.70x = 153,773,061,487.94
  5. Step 5: Solve for x
    x = 153,773,061,487.94/336,109.70
  6. Step 6: Final answer
    x = 457,508.55

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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.