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Finding the Fourth Proportional to 255,660.58, 353,449.29 and 191,887.66

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Solution

The fourth proportional to 255,660.58, 353,449.29 and 191,887.66 is: 265,283.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,660.58 : 353,449.29 = 191,887.66 : x
  2. Step 2: Convert to fraction form
    255,660.58/353,449.29 = 191,887.66/x
  3. Step 3: Cross multiply
    255,660.58x = 353,449.29 × 191,887.66
  4. Step 4: Simplify right side
    255,660.58x = 67,822,557,186.76
  5. Step 5: Solve for x
    x = 67,822,557,186.76/255,660.58
  6. Step 6: Final answer
    x = 265,283.59

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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.