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Finding the Fourth Proportional to 356,407.99, 491,843.65 and 195,259.57

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Solution

The fourth proportional to 356,407.99, 491,843.65 and 195,259.57 is: 269,458.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,407.99 : 491,843.65 = 195,259.57 : x
  2. Step 2: Convert to fraction form
    356,407.99/491,843.65 = 195,259.57/x
  3. Step 3: Cross multiply
    356,407.99x = 491,843.65 × 195,259.57
  4. Step 4: Simplify right side
    356,407.99x = 96,037,177,888.47
  5. Step 5: Solve for x
    x = 96,037,177,888.47/356,407.99
  6. Step 6: Final answer
    x = 269,458.55

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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.