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Finding the Fourth Proportional to 612,059.40, 844,638.75 and 336,423.60

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Solution

The fourth proportional to 612,059.40, 844,638.75 and 336,423.60 is: 464,262.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,059.40 : 844,638.75 = 336,423.60 : x
  2. Step 2: Convert to fraction form
    612,059.40/844,638.75 = 336,423.60/x
  3. Step 3: Cross multiply
    612,059.40x = 844,638.75 × 336,423.60
  4. Step 4: Simplify right side
    612,059.40x = 284,156,408,974.50
  5. Step 5: Solve for x
    x = 284,156,408,974.50/612,059.40
  6. Step 6: Final answer
    x = 464,262.80

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Similar ratio
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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.