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Finding the Fourth Proportional to 316,191.70, 436,572.75 and 195,498.46

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Solution

The fourth proportional to 316,191.70, 436,572.75 and 195,498.46 is: 269,928.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,191.70 : 436,572.75 = 195,498.46 : x
  2. Step 2: Convert to fraction form
    316,191.70/436,572.75 = 195,498.46/x
  3. Step 3: Cross multiply
    316,191.70x = 436,572.75 × 195,498.46
  4. Step 4: Simplify right side
    316,191.70x = 85,349,300,302.97
  5. Step 5: Solve for x
    x = 85,349,300,302.97/316,191.70
  6. Step 6: Final answer
    x = 269,928.97

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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.