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Finding the Fourth Proportional to 606,968.10, 910,452.15 and 207,621.90

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Solution

The fourth proportional to 606,968.10, 910,452.15 and 207,621.90 is: 311,432.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,968.10 : 910,452.15 = 207,621.90 : x
  2. Step 2: Convert to fraction form
    606,968.10/910,452.15 = 207,621.90/x
  3. Step 3: Cross multiply
    606,968.10x = 910,452.15 × 207,621.90
  4. Step 4: Simplify right side
    606,968.10x = 189,029,805,242.09
  5. Step 5: Solve for x
    x = 189,029,805,242.09/606,968.10
  6. Step 6: Final answer
    x = 311,432.85

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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.