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Finding the Fourth Proportional to 506,404.20, 759,606.30 and 317,447.40

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Solution

The fourth proportional to 506,404.20, 759,606.30 and 317,447.40 is: 476,171.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    506,404.20 : 759,606.30 = 317,447.40 : x
  2. Step 2: Convert to fraction form
    506,404.20/759,606.30 = 317,447.40/x
  3. Step 3: Cross multiply
    506,404.20x = 759,606.30 × 317,447.40
  4. Step 4: Simplify right side
    506,404.20x = 241,135,044,958.62
  5. Step 5: Solve for x
    x = 241,135,044,958.62/506,404.20
  6. Step 6: Final answer
    x = 476,171.10

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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.