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Finding the Fourth Proportional to 604,818.60, 907,227.90 and 309,906.60

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Solution

The fourth proportional to 604,818.60, 907,227.90 and 309,906.60 is: 464,859.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,818.60 : 907,227.90 = 309,906.60 : x
  2. Step 2: Convert to fraction form
    604,818.60/907,227.90 = 309,906.60/x
  3. Step 3: Cross multiply
    604,818.60x = 907,227.90 × 309,906.60
  4. Step 4: Simplify right side
    604,818.60x = 281,155,913,914.14
  5. Step 5: Solve for x
    x = 281,155,913,914.14/604,818.60
  6. Step 6: Final answer
    x = 464,859.90

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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.