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Finding the Fourth Proportional to 331,470.84, 457,395.48 and 186,253.56

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Solution

The fourth proportional to 331,470.84, 457,395.48 and 186,253.56 is: 257,010.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,470.84 : 457,395.48 = 186,253.56 : x
  2. Step 2: Convert to fraction form
    331,470.84/457,395.48 = 186,253.56/x
  3. Step 3: Cross multiply
    331,470.84x = 457,395.48 × 186,253.56
  4. Step 4: Simplify right side
    331,470.84x = 85,191,536,477.91
  5. Step 5: Solve for x
    x = 85,191,536,477.91/331,470.84
  6. Step 6: Final answer
    x = 257,010.65

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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.