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Finding the Fourth Proportional to 664,817.10, 996,934.05 and 265,325.10

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Solution

The fourth proportional to 664,817.10, 996,934.05 and 265,325.10 is: 397,871.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,817.10 : 996,934.05 = 265,325.10 : x
  2. Step 2: Convert to fraction form
    664,817.10/996,934.05 = 265,325.10/x
  3. Step 3: Cross multiply
    664,817.10x = 996,934.05 × 265,325.10
  4. Step 4: Simplify right side
    664,817.10x = 264,511,626,509.66
  5. Step 5: Solve for x
    x = 264,511,626,509.66/664,817.10
  6. Step 6: Final answer
    x = 397,871.27

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Double scale
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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.