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Finding the Fourth Proportional to 616,815.30, 925,568.55 and 261,768.90

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Solution

The fourth proportional to 616,815.30, 925,568.55 and 261,768.90 is: 392,800.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,815.30 : 925,568.55 = 261,768.90 : x
  2. Step 2: Convert to fraction form
    616,815.30/925,568.55 = 261,768.90/x
  3. Step 3: Cross multiply
    616,815.30x = 925,568.55 × 261,768.90
  4. Step 4: Simplify right side
    616,815.30x = 242,285,061,208.10
  5. Step 5: Solve for x
    x = 242,285,061,208.10/616,815.30
  6. Step 6: Final answer
    x = 392,800.02

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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.