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Finding the Fourth Proportional to 1,963,063.89, 2,944,026.81 and 764,719.11

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Solution

The fourth proportional to 1,963,063.89, 2,944,026.81 and 764,719.11 is: 1,146,857.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,963,063.89 : 2,944,026.81 = 764,719.11 : x
  2. Step 2: Convert to fraction form
    1,963,063.89/2,944,026.81 = 764,719.11/x
  3. Step 3: Cross multiply
    1,963,063.89x = 2,944,026.81 × 764,719.11
  4. Step 4: Simplify right side
    1,963,063.89x = 2,251,353,561,959.34
  5. Step 5: Solve for x
    x = 2,251,353,561,959.34/1,963,063.89
  6. Step 6: Final answer
    x = 1,146,857.00

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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.