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Finding the Fourth Proportional to 3,309,877.76, 4,964,816.90 and 1,066,015.76

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Solution

The fourth proportional to 3,309,877.76, 4,964,816.90 and 1,066,015.76 is: 1,599,023.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,309,877.76 : 4,964,816.90 = 1,066,015.76 : x
  2. Step 2: Convert to fraction form
    3,309,877.76/4,964,816.90 = 1,066,015.76/x
  3. Step 3: Cross multiply
    3,309,877.76x = 4,964,816.90 × 1,066,015.76
  4. Step 4: Simplify right side
    3,309,877.76x = 5,292,573,060,914.35
  5. Step 5: Solve for x
    x = 5,292,573,060,914.35/3,309,877.76
  6. Step 6: Final answer
    x = 1,599,023.72

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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.