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Finding the Fourth Proportional to 417,431.54, 576,055.73 and 236,139.64

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Solution

The fourth proportional to 417,431.54, 576,055.73 and 236,139.64 is: 325,872.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,431.54 : 576,055.73 = 236,139.64 : x
  2. Step 2: Convert to fraction form
    417,431.54/576,055.73 = 236,139.64/x
  3. Step 3: Cross multiply
    417,431.54x = 576,055.73 × 236,139.64
  4. Step 4: Simplify right side
    417,431.54x = 136,029,591,852.35
  5. Step 5: Solve for x
    x = 136,029,591,852.35/417,431.54
  6. Step 6: Final answer
    x = 325,872.82

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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.