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Finding the Fourth Proportional to 525,662.73, 725,414.85 and 283,945.30

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Solution

The fourth proportional to 525,662.73, 725,414.85 and 283,945.30 is: 391,844.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,662.73 : 725,414.85 = 283,945.30 : x
  2. Step 2: Convert to fraction form
    525,662.73/725,414.85 = 283,945.30/x
  3. Step 3: Cross multiply
    525,662.73x = 725,414.85 × 283,945.30
  4. Step 4: Simplify right side
    525,662.73x = 205,978,137,207.71
  5. Step 5: Solve for x
    x = 205,978,137,207.71/525,662.73
  6. Step 6: Final answer
    x = 391,844.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.