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Finding the Fourth Proportional to 331,237.65, 456,955.11 and 195,178.71

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Solution

The fourth proportional to 331,237.65, 456,955.11 and 195,178.71 is: 269,256.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,237.65 : 456,955.11 = 195,178.71 : x
  2. Step 2: Convert to fraction form
    331,237.65/456,955.11 = 195,178.71/x
  3. Step 3: Cross multiply
    331,237.65x = 456,955.11 × 195,178.71
  4. Step 4: Simplify right side
    331,237.65x = 89,187,908,897.71
  5. Step 5: Solve for x
    x = 89,187,908,897.71/331,237.65
  6. Step 6: Final answer
    x = 269,256.56

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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.