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Finding the Fourth Proportional to 814,774.80, 1,222,453.80 and 341,605.20

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Solution

The fourth proportional to 814,774.80, 1,222,453.80 and 341,605.20 is: 512,530.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,774.80 : 1,222,453.80 = 341,605.20 : x
  2. Step 2: Convert to fraction form
    814,774.80/1,222,453.80 = 341,605.20/x
  3. Step 3: Cross multiply
    814,774.80x = 1,222,453.80 × 341,605.20
  4. Step 4: Simplify right side
    814,774.80x = 417,596,574,839.76
  5. Step 5: Solve for x
    x = 417,596,574,839.76/814,774.80
  6. Step 6: Final answer
    x = 512,530.06

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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.