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Finding the Fourth Proportional to 606,984.20, 910,476.30 and 291,278.60

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Solution

The fourth proportional to 606,984.20, 910,476.30 and 291,278.60 is: 436,917.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,984.20 : 910,476.30 = 291,278.60 : x
  2. Step 2: Convert to fraction form
    606,984.20/910,476.30 = 291,278.60/x
  3. Step 3: Cross multiply
    606,984.20x = 910,476.30 × 291,278.60
  4. Step 4: Simplify right side
    606,984.20x = 265,202,261,997.18
  5. Step 5: Solve for x
    x = 265,202,261,997.18/606,984.20
  6. Step 6: Final answer
    x = 436,917.90

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Double scale
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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.