Home / 1,185,329.99-1,635,755.27-641,465.78

Finding the Fourth Proportional to 1,185,329.99, 1,635,755.27 and 641,465.78

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Solution

The fourth proportional to 1,185,329.99, 1,635,755.27 and 641,465.78 is: 885,222.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,185,329.99 : 1,635,755.27 = 641,465.78 : x
  2. Step 2: Convert to fraction form
    1,185,329.99/1,635,755.27 = 641,465.78/x
  3. Step 3: Cross multiply
    1,185,329.99x = 1,635,755.27 × 641,465.78
  4. Step 4: Simplify right side
    1,185,329.99x = 1,049,281,018,773.56
  5. Step 5: Solve for x
    x = 1,049,281,018,773.56/1,185,329.99
  6. Step 6: Final answer
    x = 885,222.70

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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.