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Finding the Fourth Proportional to 497,428.40, 746,142.60 and 165,004.40

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Solution

The fourth proportional to 497,428.40, 746,142.60 and 165,004.40 is: 247,506.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,428.40 : 746,142.60 = 165,004.40 : x
  2. Step 2: Convert to fraction form
    497,428.40/746,142.60 = 165,004.40/x
  3. Step 3: Cross multiply
    497,428.40x = 746,142.60 × 165,004.40
  4. Step 4: Simplify right side
    497,428.40x = 123,116,812,027.44
  5. Step 5: Solve for x
    x = 123,116,812,027.44/497,428.40
  6. Step 6: Final answer
    x = 247,506.60

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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.