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Finding the Fourth Proportional to 1,968,458.28, 2,716,472.46 and 1,063,040.28

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Solution

The fourth proportional to 1,968,458.28, 2,716,472.46 and 1,063,040.28 is: 1,466,995.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,968,458.28 : 2,716,472.46 = 1,063,040.28 : x
  2. Step 2: Convert to fraction form
    1,968,458.28/2,716,472.46 = 1,063,040.28/x
  3. Step 3: Cross multiply
    1,968,458.28x = 2,716,472.46 × 1,063,040.28
  4. Step 4: Simplify right side
    1,968,458.28x = 2,887,719,644,490.69
  5. Step 5: Solve for x
    x = 2,887,719,644,490.69/1,968,458.28
  6. Step 6: Final answer
    x = 1,466,995.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.