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Finding the Fourth Proportional to 571,692.86, 788,930.76 and 313,564.52

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Solution

The fourth proportional to 571,692.86, 788,930.76 and 313,564.52 is: 432,716.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,692.86 : 788,930.76 = 313,564.52 : x
  2. Step 2: Convert to fraction form
    571,692.86/788,930.76 = 313,564.52/x
  3. Step 3: Cross multiply
    571,692.86x = 788,930.76 × 313,564.52
  4. Step 4: Simplify right side
    571,692.86x = 247,380,691,127.98
  5. Step 5: Solve for x
    x = 247,380,691,127.98/571,692.86
  6. Step 6: Final answer
    x = 432,716.08

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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.