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Finding the Fourth Proportional to 336,409.80, 504,614.70 and 136,663.80

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Solution

The fourth proportional to 336,409.80, 504,614.70 and 136,663.80 is: 204,995.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,409.80 : 504,614.70 = 136,663.80 : x
  2. Step 2: Convert to fraction form
    336,409.80/504,614.70 = 136,663.80/x
  3. Step 3: Cross multiply
    336,409.80x = 504,614.70 × 136,663.80
  4. Step 4: Simplify right side
    336,409.80x = 68,962,562,437.86
  5. Step 5: Solve for x
    x = 68,962,562,437.86/336,409.80
  6. Step 6: Final answer
    x = 204,995.70

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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.