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Finding the Fourth Proportional to 316,345.50, 436,560.84 and 182,209.50

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Solution

The fourth proportional to 316,345.50, 436,560.84 and 182,209.50 is: 251,451.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,345.50 : 436,560.84 = 182,209.50 : x
  2. Step 2: Convert to fraction form
    316,345.50/436,560.84 = 182,209.50/x
  3. Step 3: Cross multiply
    316,345.50x = 436,560.84 × 182,209.50
  4. Step 4: Simplify right side
    316,345.50x = 79,545,532,375.98
  5. Step 5: Solve for x
    x = 79,545,532,375.98/316,345.50
  6. Step 6: Final answer
    x = 251,451.44

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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.