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Finding the Fourth Proportional to 544,874.40, 817,311.60 and 212,450.40

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Solution

The fourth proportional to 544,874.40, 817,311.60 and 212,450.40 is: 318,675.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,874.40 : 817,311.60 = 212,450.40 : x
  2. Step 2: Convert to fraction form
    544,874.40/817,311.60 = 212,450.40/x
  3. Step 3: Cross multiply
    544,874.40x = 817,311.60 × 212,450.40
  4. Step 4: Simplify right side
    544,874.40x = 173,638,176,344.64
  5. Step 5: Solve for x
    x = 173,638,176,344.64/544,874.40
  6. Step 6: Final answer
    x = 318,675.60

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Double scale
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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.