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Finding the Fourth Proportional to 561,787.76, 774,745.99 and 357,625.85

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Solution

The fourth proportional to 561,787.76, 774,745.99 and 357,625.85 is: 493,191.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,787.76 : 774,745.99 = 357,625.85 : x
  2. Step 2: Convert to fraction form
    561,787.76/774,745.99 = 357,625.85/x
  3. Step 3: Cross multiply
    561,787.76x = 774,745.99 × 357,625.85
  4. Step 4: Simplify right side
    561,787.76x = 277,069,188,440.05
  5. Step 5: Solve for x
    x = 277,069,188,440.05/561,787.76
  6. Step 6: Final answer
    x = 493,191.93

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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.