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Finding the Fourth Proportional to 591,190.40, 886,915.20 and 191,763.20

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Solution

The fourth proportional to 591,190.40, 886,915.20 and 191,763.20 is: 287,686.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,190.40 : 886,915.20 = 191,763.20 : x
  2. Step 2: Convert to fraction form
    591,190.40/886,915.20 = 191,763.20/x
  3. Step 3: Cross multiply
    591,190.40x = 886,915.20 × 191,763.20
  4. Step 4: Simplify right side
    591,190.40x = 170,077,696,880.64
  5. Step 5: Solve for x
    x = 170,077,696,880.64/591,190.40
  6. Step 6: Final answer
    x = 287,686.84

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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.