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Finding the Fourth Proportional to 468,618.85, 646,692.85 and 253,758.90

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Solution

The fourth proportional to 468,618.85, 646,692.85 and 253,758.90 is: 350,186.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,618.85 : 646,692.85 = 253,758.90 : x
  2. Step 2: Convert to fraction form
    468,618.85/646,692.85 = 253,758.90/x
  3. Step 3: Cross multiply
    468,618.85x = 646,692.85 × 253,758.90
  4. Step 4: Simplify right side
    468,618.85x = 164,104,066,253.87
  5. Step 5: Solve for x
    x = 164,104,066,253.87/468,618.85
  6. Step 6: Final answer
    x = 350,186.65

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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.