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Finding the Fourth Proportional to 630,186.10, 945,279.15 and 551,454.10

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Solution

The fourth proportional to 630,186.10, 945,279.15 and 551,454.10 is: 827,181.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,186.10 : 945,279.15 = 551,454.10 : x
  2. Step 2: Convert to fraction form
    630,186.10/945,279.15 = 551,454.10/x
  3. Step 3: Cross multiply
    630,186.10x = 945,279.15 × 551,454.10
  4. Step 4: Simplify right side
    630,186.10x = 521,278,062,912.02
  5. Step 5: Solve for x
    x = 521,278,062,912.02/630,186.10
  6. Step 6: Final answer
    x = 827,181.15

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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.