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Finding the Fourth Proportional to 568,486.36, 852,279.72 and 213,460.84

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Solution

The fourth proportional to 568,486.36, 852,279.72 and 213,460.84 is: 320,022.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,486.36 : 852,279.72 = 213,460.84 : x
  2. Step 2: Convert to fraction form
    568,486.36/852,279.72 = 213,460.84/x
  3. Step 3: Cross multiply
    568,486.36x = 852,279.72 × 213,460.84
  4. Step 4: Simplify right side
    568,486.36x = 181,928,344,946.17
  5. Step 5: Solve for x
    x = 181,928,344,946.17/568,486.36
  6. Step 6: Final answer
    x = 320,022.36

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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.