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Finding the Fourth Proportional to 3,309,878.76, 4,964,818.40 and 1,066,016.76

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Solution

The fourth proportional to 3,309,878.76, 4,964,818.40 and 1,066,016.76 is: 1,599,025.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,309,878.76 : 4,964,818.40 = 1,066,016.76 : x
  2. Step 2: Convert to fraction form
    3,309,878.76/4,964,818.40 = 1,066,016.76/x
  3. Step 3: Cross multiply
    3,309,878.76x = 4,964,818.40 × 1,066,016.76
  4. Step 4: Simplify right side
    3,309,878.76x = 5,292,579,624,756.39
  5. Step 5: Solve for x
    x = 5,292,579,624,756.39/3,309,878.76
  6. Step 6: Final answer
    x = 1,599,025.22

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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.