Home / 657,208.20-985,812.30-447,256.20

Finding the Fourth Proportional to 657,208.20, 985,812.30 and 447,256.20

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Solution

The fourth proportional to 657,208.20, 985,812.30 and 447,256.20 is: 670,884.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,208.20 : 985,812.30 = 447,256.20 : x
  2. Step 2: Convert to fraction form
    657,208.20/985,812.30 = 447,256.20/x
  3. Step 3: Cross multiply
    657,208.20x = 985,812.30 × 447,256.20
  4. Step 4: Simplify right side
    657,208.20x = 440,910,663,211.26
  5. Step 5: Solve for x
    x = 440,910,663,211.26/657,208.20
  6. Step 6: Final answer
    x = 670,884.30

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Double scale
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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.