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Finding the Fourth Proportional to 492,059.40, 738,089.10 and 448,513.80

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Solution

The fourth proportional to 492,059.40, 738,089.10 and 448,513.80 is: 672,770.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,059.40 : 738,089.10 = 448,513.80 : x
  2. Step 2: Convert to fraction form
    492,059.40/738,089.10 = 448,513.80/x
  3. Step 3: Cross multiply
    492,059.40x = 738,089.10 × 448,513.80
  4. Step 4: Simplify right side
    492,059.40x = 331,043,146,979.58
  5. Step 5: Solve for x
    x = 331,043,146,979.58/492,059.40
  6. Step 6: Final answer
    x = 672,770.70

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Similar ratio
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1.5x scale

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.