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Finding the Fourth Proportional to 691,645.50, 955,258.11 and 464,897.34

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Solution

The fourth proportional to 691,645.50, 955,258.11 and 464,897.34 is: 642,087.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,645.50 : 955,258.11 = 464,897.34 : x
  2. Step 2: Convert to fraction form
    691,645.50/955,258.11 = 464,897.34/x
  3. Step 3: Cross multiply
    691,645.50x = 955,258.11 × 464,897.34
  4. Step 4: Simplify right side
    691,645.50x = 444,096,954,352.43
  5. Step 5: Solve for x
    x = 444,096,954,352.43/691,645.50
  6. Step 6: Final answer
    x = 642,087.54

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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.