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Finding the Fourth Proportional to 316,947.88, 475,421.82 and 192,026.44

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Solution

The fourth proportional to 316,947.88, 475,421.82 and 192,026.44 is: 288,039.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,947.88 : 475,421.82 = 192,026.44 : x
  2. Step 2: Convert to fraction form
    316,947.88/475,421.82 = 192,026.44/x
  3. Step 3: Cross multiply
    316,947.88x = 475,421.82 × 192,026.44
  4. Step 4: Simplify right side
    316,947.88x = 91,293,558,632.79
  5. Step 5: Solve for x
    x = 91,293,558,632.79/316,947.88
  6. Step 6: Final answer
    x = 288,039.66

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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.