Home / 639,028.30-958,542.45-544,039.60

Finding the Fourth Proportional to 639,028.30, 958,542.45 and 544,039.60

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Solution

The fourth proportional to 639,028.30, 958,542.45 and 544,039.60 is: 816,059.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,028.30 : 958,542.45 = 544,039.60 : x
  2. Step 2: Convert to fraction form
    639,028.30/958,542.45 = 544,039.60/x
  3. Step 3: Cross multiply
    639,028.30x = 958,542.45 × 544,039.60
  4. Step 4: Simplify right side
    639,028.30x = 521,485,051,081.02
  5. Step 5: Solve for x
    x = 521,485,051,081.02/639,028.30
  6. Step 6: Final answer
    x = 816,059.40

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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.