Home / 657,010.20-985,515.30-447,058.20

Finding the Fourth Proportional to 657,010.20, 985,515.30 and 447,058.20

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Solution

The fourth proportional to 657,010.20, 985,515.30 and 447,058.20 is: 670,587.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,010.20 : 985,515.30 = 447,058.20 : x
  2. Step 2: Convert to fraction form
    657,010.20/985,515.30 = 447,058.20/x
  3. Step 3: Cross multiply
    657,010.20x = 985,515.30 × 447,058.20
  4. Step 4: Simplify right side
    657,010.20x = 440,582,696,090.46
  5. Step 5: Solve for x
    x = 440,582,696,090.46/657,010.20
  6. Step 6: Final answer
    x = 670,587.30

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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.