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Finding the Fourth Proportional to 647,546.10, 971,319.15 and 367,610.10

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Solution

The fourth proportional to 647,546.10, 971,319.15 and 367,610.10 is: 551,415.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,546.10 : 971,319.15 = 367,610.10 : x
  2. Step 2: Convert to fraction form
    647,546.10/971,319.15 = 367,610.10/x
  3. Step 3: Cross multiply
    647,546.10x = 971,319.15 × 367,610.10
  4. Step 4: Simplify right side
    647,546.10x = 357,066,729,863.42
  5. Step 5: Solve for x
    x = 357,066,729,863.42/647,546.10
  6. Step 6: Final answer
    x = 551,415.15

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Similar ratio
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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.