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Finding the Fourth Proportional to 395,127.64, 545,284.47 and 233,923.87

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Solution

The fourth proportional to 395,127.64, 545,284.47 and 233,923.87 is: 322,819.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,127.64 : 545,284.47 = 233,923.87 : x
  2. Step 2: Convert to fraction form
    395,127.64/545,284.47 = 233,923.87/x
  3. Step 3: Cross multiply
    395,127.64x = 545,284.47 × 233,923.87
  4. Step 4: Simplify right side
    395,127.64x = 127,555,053,473.30
  5. Step 5: Solve for x
    x = 127,555,053,473.30/395,127.64
  6. Step 6: Final answer
    x = 322,819.87

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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.