Home / 1,185,209.34-1,635,593.24-641,345.15

Finding the Fourth Proportional to 1,185,209.34, 1,635,593.24 and 641,345.15

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Solution

The fourth proportional to 1,185,209.34, 1,635,593.24 and 641,345.15 is: 885,058.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,185,209.34 : 1,635,593.24 = 641,345.15 : x
  2. Step 2: Convert to fraction form
    1,185,209.34/1,635,593.24 = 641,345.15/x
  3. Step 3: Cross multiply
    1,185,209.34x = 1,635,593.24 × 641,345.15
  4. Step 4: Simplify right side
    1,185,209.34x = 1,048,979,780,462.09
  5. Step 5: Solve for x
    x = 1,048,979,780,462.09/1,185,209.34
  6. Step 6: Final answer
    x = 885,058.65

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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.