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Finding the Fourth Proportional to 571,806, 788,575.68 and 356,965.92

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Solution

The fourth proportional to 571,806, 788,575.68 and 356,965.92 is: 492,290.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,806 : 788,575.68 = 356,965.92 : x
  2. Step 2: Convert to fraction form
    571,806/788,575.68 = 356,965.92/x
  3. Step 3: Cross multiply
    571,806x = 788,575.68 × 356,965.92
  4. Step 4: Simplify right side
    571,806x = 281,494,643,100.83
  5. Step 5: Solve for x
    x = 281,494,643,100.83/571,806
  6. Step 6: Final answer
    x = 492,290.47

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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.