Home / 684,029.09-944,053.91-393,634.69

Finding the Fourth Proportional to 684,029.09, 944,053.91 and 393,634.69

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Solution

The fourth proportional to 684,029.09, 944,053.91 and 393,634.69 is: 543,269.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,029.09 : 944,053.91 = 393,634.69 : x
  2. Step 2: Convert to fraction form
    684,029.09/944,053.91 = 393,634.69/x
  3. Step 3: Cross multiply
    684,029.09x = 944,053.91 × 393,634.69
  4. Step 4: Simplify right side
    684,029.09x = 371,612,368,206.14
  5. Step 5: Solve for x
    x = 371,612,368,206.14/684,029.09
  6. Step 6: Final answer
    x = 543,269.83

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Double scale
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Similar ratio
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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.