Home / 386,739.35-533,692.25-214,647.21

Finding the Fourth Proportional to 386,739.35, 533,692.25 and 214,647.21

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Solution

The fourth proportional to 386,739.35, 533,692.25 and 214,647.21 is: 296,208.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,739.35 : 533,692.25 = 214,647.21 : x
  2. Step 2: Convert to fraction form
    386,739.35/533,692.25 = 214,647.21/x
  3. Step 3: Cross multiply
    386,739.35x = 533,692.25 × 214,647.21
  4. Step 4: Simplify right side
    386,739.35x = 114,555,552,461.12
  5. Step 5: Solve for x
    x = 114,555,552,461.12/386,739.35
  6. Step 6: Final answer
    x = 296,208.68

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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.