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Finding the Fourth Proportional to 609,664.60, 914,496.90 and 373,274.20

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Solution

The fourth proportional to 609,664.60, 914,496.90 and 373,274.20 is: 559,911.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,664.60 : 914,496.90 = 373,274.20 : x
  2. Step 2: Convert to fraction form
    609,664.60/914,496.90 = 373,274.20/x
  3. Step 3: Cross multiply
    609,664.60x = 914,496.90 × 373,274.20
  4. Step 4: Simplify right side
    609,664.60x = 341,358,098,749.98
  5. Step 5: Solve for x
    x = 341,358,098,749.98/609,664.60
  6. Step 6: Final answer
    x = 559,911.30

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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.