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Finding the Fourth Proportional to 449,852.70, 674,779.05 and 442,076.70

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Solution

The fourth proportional to 449,852.70, 674,779.05 and 442,076.70 is: 663,115.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,852.70 : 674,779.05 = 442,076.70 : x
  2. Step 2: Convert to fraction form
    449,852.70/674,779.05 = 442,076.70/x
  3. Step 3: Cross multiply
    449,852.70x = 674,779.05 × 442,076.70
  4. Step 4: Simplify right side
    449,852.70x = 298,304,095,653.14
  5. Step 5: Solve for x
    x = 298,304,095,653.14/449,852.70
  6. Step 6: Final answer
    x = 663,115.05

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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.