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Finding the Fourth Proportional to 508,692.47, 763,030.94 and 171,969.65

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Solution

The fourth proportional to 508,692.47, 763,030.94 and 171,969.65 is: 257,951.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,692.47 : 763,030.94 = 171,969.65 : x
  2. Step 2: Convert to fraction form
    508,692.47/763,030.94 = 171,969.65/x
  3. Step 3: Cross multiply
    508,692.47x = 763,030.94 × 171,969.65
  4. Step 4: Simplify right side
    508,692.47x = 131,218,161,877.33
  5. Step 5: Solve for x
    x = 131,218,161,877.33/508,692.47
  6. Step 6: Final answer
    x = 257,951.85

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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.