Home / 657,005.20-985,507.80-213,773.20

Finding the Fourth Proportional to 657,005.20, 985,507.80 and 213,773.20

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Solution

The fourth proportional to 657,005.20, 985,507.80 and 213,773.20 is: 320,659.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,005.20 : 985,507.80 = 213,773.20 : x
  2. Step 2: Convert to fraction form
    657,005.20/985,507.80 = 213,773.20/x
  3. Step 3: Cross multiply
    657,005.20x = 985,507.80 × 213,773.20
  4. Step 4: Simplify right side
    657,005.20x = 210,675,156,030.96
  5. Step 5: Solve for x
    x = 210,675,156,030.96/657,005.20
  6. Step 6: Final answer
    x = 320,659.80

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.