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Finding the Fourth Proportional to 1,966,807.95, 2,759,129.85 and 1,966,807.95

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Solution

The fourth proportional to 1,966,807.95, 2,759,129.85 and 1,966,807.95 is: 2,759,129.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,966,807.95 : 2,759,129.85 = 1,966,807.95 : x
  2. Step 2: Convert to fraction form
    1,966,807.95/2,759,129.85 = 1,966,807.95/x
  3. Step 3: Cross multiply
    1,966,807.95x = 2,759,129.85 × 1,966,807.95
  4. Step 4: Simplify right side
    1,966,807.95x = 5,426,678,524,062.31
  5. Step 5: Solve for x
    x = 5,426,678,524,062.31/1,966,807.95
  6. Step 6: Final answer
    x = 2,759,129.85

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.