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Finding the Fourth Proportional to 627,768.92, 864,856.68 and 436,450.16

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Solution

The fourth proportional to 627,768.92, 864,856.68 and 436,450.16 is: 601,283.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,768.92 : 864,856.68 = 436,450.16 : x
  2. Step 2: Convert to fraction form
    627,768.92/864,856.68 = 436,450.16/x
  3. Step 3: Cross multiply
    627,768.92x = 864,856.68 × 436,450.16
  4. Step 4: Simplify right side
    627,768.92x = 377,466,832,038.79
  5. Step 5: Solve for x
    x = 377,466,832,038.79/627,768.92
  6. Step 6: Final answer
    x = 601,283.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.