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Finding the Fourth Proportional to 945,951.60, 1,419,618.60 and 666,015.60

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Solution

The fourth proportional to 945,951.60, 1,419,618.60 and 666,015.60 is: 999,510.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    945,951.60 : 1,419,618.60 = 666,015.60 : x
  2. Step 2: Convert to fraction form
    945,951.60/1,419,618.60 = 666,015.60/x
  3. Step 3: Cross multiply
    945,951.60x = 1,419,618.60 × 666,015.60
  4. Step 4: Simplify right side
    945,951.60x = 945,488,133,650.16
  5. Step 5: Solve for x
    x = 945,488,133,650.16/945,951.60
  6. Step 6: Final answer
    x = 999,510.05

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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.