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Finding the Fourth Proportional to 558,082.52, 768,787.14 and 404,669.86

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Solution

The fourth proportional to 558,082.52, 768,787.14 and 404,669.86 is: 557,453.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,082.52 : 768,787.14 = 404,669.86 : x
  2. Step 2: Convert to fraction form
    558,082.52/768,787.14 = 404,669.86/x
  3. Step 3: Cross multiply
    558,082.52x = 768,787.14 × 404,669.86
  4. Step 4: Simplify right side
    558,082.52x = 311,104,984,313.60
  5. Step 5: Solve for x
    x = 311,104,984,313.60/558,082.52
  6. Step 6: Final answer
    x = 557,453.38

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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.