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Finding the Fourth Proportional to 453,907.40, 680,861.10 and 201,308.90

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Solution

The fourth proportional to 453,907.40, 680,861.10 and 201,308.90 is: 301,963.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,907.40 : 680,861.10 = 201,308.90 : x
  2. Step 2: Convert to fraction form
    453,907.40/680,861.10 = 201,308.90/x
  3. Step 3: Cross multiply
    453,907.40x = 680,861.10 × 201,308.90
  4. Step 4: Simplify right side
    453,907.40x = 137,063,399,093.79
  5. Step 5: Solve for x
    x = 137,063,399,093.79/453,907.40
  6. Step 6: Final answer
    x = 301,963.35

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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.