Home / 1,185,313.30-1,635,725.95-641,448.92

Finding the Fourth Proportional to 1,185,313.30, 1,635,725.95 and 641,448.92

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Solution

The fourth proportional to 1,185,313.30, 1,635,725.95 and 641,448.92 is: 885,196.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,185,313.30 : 1,635,725.95 = 641,448.92 : x
  2. Step 2: Convert to fraction form
    1,185,313.30/1,635,725.95 = 641,448.92/x
  3. Step 3: Cross multiply
    1,185,313.30x = 1,635,725.95 × 641,448.92
  4. Step 4: Simplify right side
    1,185,313.30x = 1,049,234,646,529.17
  5. Step 5: Solve for x
    x = 1,049,234,646,529.17/1,185,313.30
  6. Step 6: Final answer
    x = 885,196.05

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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.