Home / 641,721.67-885,625.08-366,085.59

Finding the Fourth Proportional to 641,721.67, 885,625.08 and 366,085.59

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Solution

The fourth proportional to 641,721.67, 885,625.08 and 366,085.59 is: 505,226.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,721.67 : 885,625.08 = 366,085.59 : x
  2. Step 2: Convert to fraction form
    641,721.67/885,625.08 = 366,085.59/x
  3. Step 3: Cross multiply
    641,721.67x = 885,625.08 × 366,085.59
  4. Step 4: Simplify right side
    641,721.67x = 324,214,576,417.69
  5. Step 5: Solve for x
    x = 324,214,576,417.69/641,721.67
  6. Step 6: Final answer
    x = 505,226.17

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Double scale
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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.