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Finding the Fourth Proportional to 422,590.84, 583,180.50 and 231,600.16

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Solution

The fourth proportional to 422,590.84, 583,180.50 and 231,600.16 is: 319,611.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,590.84 : 583,180.50 = 231,600.16 : x
  2. Step 2: Convert to fraction form
    422,590.84/583,180.50 = 231,600.16/x
  3. Step 3: Cross multiply
    422,590.84x = 583,180.50 × 231,600.16
  4. Step 4: Simplify right side
    422,590.84x = 135,064,697,108.88
  5. Step 5: Solve for x
    x = 135,064,697,108.88/422,590.84
  6. Step 6: Final answer
    x = 319,611.04

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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.