Home / 657,007.60-985,511.40-283,759.60

Finding the Fourth Proportional to 657,007.60, 985,511.40 and 283,759.60

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Solution

The fourth proportional to 657,007.60, 985,511.40 and 283,759.60 is: 425,639.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,007.60 : 985,511.40 = 283,759.60 : x
  2. Step 2: Convert to fraction form
    657,007.60/985,511.40 = 283,759.60/x
  3. Step 3: Cross multiply
    657,007.60x = 985,511.40 × 283,759.60
  4. Step 4: Simplify right side
    657,007.60x = 279,648,320,659.44
  5. Step 5: Solve for x
    x = 279,648,320,659.44/657,007.60
  6. Step 6: Final answer
    x = 425,639.40

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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.