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Finding the Fourth Proportional to 613,419.60, 920,522.76 and 297,704.40

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Solution

The fourth proportional to 613,419.60, 920,522.76 and 297,704.40 is: 446,747.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,419.60 : 920,522.76 = 297,704.40 : x
  2. Step 2: Convert to fraction form
    613,419.60/920,522.76 = 297,704.40/x
  3. Step 3: Cross multiply
    613,419.60x = 920,522.76 × 297,704.40
  4. Step 4: Simplify right side
    613,419.60x = 274,043,675,952.14
  5. Step 5: Solve for x
    x = 274,043,675,952.14/613,419.60
  6. Step 6: Final answer
    x = 446,747.51

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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.