Home / 641,578.14-885,364.02-351,189.36

Finding the Fourth Proportional to 641,578.14, 885,364.02 and 351,189.36

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Solution

The fourth proportional to 641,578.14, 885,364.02 and 351,189.36 is: 484,633.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,578.14 : 885,364.02 = 351,189.36 : x
  2. Step 2: Convert to fraction form
    641,578.14/885,364.02 = 351,189.36/x
  3. Step 3: Cross multiply
    641,578.14x = 885,364.02 × 351,189.36
  4. Step 4: Simplify right side
    641,578.14x = 310,930,423,550.83
  5. Step 5: Solve for x
    x = 310,930,423,550.83/641,578.14
  6. Step 6: Final answer
    x = 484,633.76

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1.5x scale

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.