Home / 1,766,313.63-2,437,505.91-991,836.78

Finding the Fourth Proportional to 1,766,313.63, 2,437,505.91 and 991,836.78

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Solution

The fourth proportional to 1,766,313.63, 2,437,505.91 and 991,836.78 is: 1,368,730.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,766,313.63 : 2,437,505.91 = 991,836.78 : x
  2. Step 2: Convert to fraction form
    1,766,313.63/2,437,505.91 = 991,836.78/x
  3. Step 3: Cross multiply
    1,766,313.63x = 2,437,505.91 × 991,836.78
  4. Step 4: Simplify right side
    1,766,313.63x = 2,417,608,013,005.37
  5. Step 5: Solve for x
    x = 2,417,608,013,005.37/1,766,313.63
  6. Step 6: Final answer
    x = 1,368,730.88

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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.