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Finding the Fourth Proportional to 568,327.32, 851,678.28 and 417,383.28

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Solution

The fourth proportional to 568,327.32, 851,678.28 and 417,383.28 is: 625,478.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,327.32 : 851,678.28 = 417,383.28 : x
  2. Step 2: Convert to fraction form
    568,327.32/851,678.28 = 417,383.28/x
  3. Step 3: Cross multiply
    568,327.32x = 851,678.28 × 417,383.28
  4. Step 4: Simplify right side
    568,327.32x = 355,476,274,011.16
  5. Step 5: Solve for x
    x = 355,476,274,011.16/568,327.32
  6. Step 6: Final answer
    x = 625,478.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.