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Finding the Fourth Proportional to 331,062.35, 456,834.42 and 185,834.86

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Solution

The fourth proportional to 331,062.35, 456,834.42 and 185,834.86 is: 256,434.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,062.35 : 456,834.42 = 185,834.86 : x
  2. Step 2: Convert to fraction form
    331,062.35/456,834.42 = 185,834.86/x
  3. Step 3: Cross multiply
    331,062.35x = 456,834.42 × 185,834.86
  4. Step 4: Simplify right side
    331,062.35x = 84,895,759,341.80
  5. Step 5: Solve for x
    x = 84,895,759,341.80/331,062.35
  6. Step 6: Final answer
    x = 256,434.36

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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.