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Finding the Fourth Proportional to 392,427.35, 541,484.53 and 231,260.47

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Solution

The fourth proportional to 392,427.35, 541,484.53 and 231,260.47 is: 319,101.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,427.35 : 541,484.53 = 231,260.47 : x
  2. Step 2: Convert to fraction form
    392,427.35/541,484.53 = 231,260.47/x
  3. Step 3: Cross multiply
    392,427.35x = 541,484.53 × 231,260.47
  4. Step 4: Simplify right side
    392,427.35x = 125,223,964,973.67
  5. Step 5: Solve for x
    x = 125,223,964,973.67/392,427.35
  6. Step 6: Final answer
    x = 319,101.01

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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.