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Finding the Fourth Proportional to 638,201.70, 957,302.55 and 283,251.60

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Solution

The fourth proportional to 638,201.70, 957,302.55 and 283,251.60 is: 424,877.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,201.70 : 957,302.55 = 283,251.60 : x
  2. Step 2: Convert to fraction form
    638,201.70/957,302.55 = 283,251.60/x
  3. Step 3: Cross multiply
    638,201.70x = 957,302.55 × 283,251.60
  4. Step 4: Simplify right side
    638,201.70x = 271,157,478,971.58
  5. Step 5: Solve for x
    x = 271,157,478,971.58/638,201.70
  6. Step 6: Final answer
    x = 424,877.40

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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.