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Finding the Fourth Proportional to 392,599.51, 541,649.36 and 256,713.00

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Solution

The fourth proportional to 392,599.51, 541,649.36 and 256,713.00 is: 354,173.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,599.51 : 541,649.36 = 256,713.00 : x
  2. Step 2: Convert to fraction form
    392,599.51/541,649.36 = 256,713.00/x
  3. Step 3: Cross multiply
    392,599.51x = 541,649.36 × 256,713.00
  4. Step 4: Simplify right side
    392,599.51x = 139,048,434,462.65
  5. Step 5: Solve for x
    x = 139,048,434,462.65/392,599.51
  6. Step 6: Final answer
    x = 354,173.73

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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.