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Finding the Fourth Proportional to 580,966.90, 801,886.57 and 326,400.10

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Solution

The fourth proportional to 580,966.90, 801,886.57 and 326,400.10 is: 450,517.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,966.90 : 801,886.57 = 326,400.10 : x
  2. Step 2: Convert to fraction form
    580,966.90/801,886.57 = 326,400.10/x
  3. Step 3: Cross multiply
    580,966.90x = 801,886.57 × 326,400.10
  4. Step 4: Simplify right side
    580,966.90x = 261,735,853,815.94
  5. Step 5: Solve for x
    x = 261,735,853,815.94/580,966.90
  6. Step 6: Final answer
    x = 450,517.67

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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.