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Finding the Fourth Proportional to 417,764.45, 576,353.48 and 236,434.82

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Solution

The fourth proportional to 417,764.45, 576,353.48 and 236,434.82 is: 326,188.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,764.45 : 576,353.48 = 236,434.82 : x
  2. Step 2: Convert to fraction form
    417,764.45/576,353.48 = 236,434.82/x
  3. Step 3: Cross multiply
    417,764.45x = 576,353.48 × 236,434.82
  4. Step 4: Simplify right side
    417,764.45x = 136,270,027,236.23
  5. Step 5: Solve for x
    x = 136,270,027,236.23/417,764.45
  6. Step 6: Final answer
    x = 326,188.66

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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.