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Finding the Fourth Proportional to 814,228.56, 1,123,605 and 456,509.52

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Solution

The fourth proportional to 814,228.56, 1,123,605 and 456,509.52 is: 629,966.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,228.56 : 1,123,605 = 456,509.52 : x
  2. Step 2: Convert to fraction form
    814,228.56/1,123,605 = 456,509.52/x
  3. Step 3: Cross multiply
    814,228.56x = 1,123,605 × 456,509.52
  4. Step 4: Simplify right side
    814,228.56x = 512,936,379,219.60
  5. Step 5: Solve for x
    x = 512,936,379,219.60/814,228.56
  6. Step 6: Final answer
    x = 629,966.09

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1.5x scale

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.