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Finding the Fourth Proportional to 587,586.40, 881,638.80 and 271,880.80

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Solution

The fourth proportional to 587,586.40, 881,638.80 and 271,880.80 is: 407,941.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,586.40 : 881,638.80 = 271,880.80 : x
  2. Step 2: Convert to fraction form
    587,586.40/881,638.80 = 271,880.80/x
  3. Step 3: Cross multiply
    587,586.40x = 881,638.80 × 271,880.80
  4. Step 4: Simplify right side
    587,586.40x = 239,700,662,255.04
  5. Step 5: Solve for x
    x = 239,700,662,255.04/587,586.40
  6. Step 6: Final answer
    x = 407,941.13

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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.