Home / 621,196.73-857,240.18-345,553.23

Finding the Fourth Proportional to 621,196.73, 857,240.18 and 345,553.23

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Solution

The fourth proportional to 621,196.73, 857,240.18 and 345,553.23 is: 476,857.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,196.73 : 857,240.18 = 345,553.23 : x
  2. Step 2: Convert to fraction form
    621,196.73/857,240.18 = 345,553.23/x
  3. Step 3: Cross multiply
    621,196.73x = 857,240.18 × 345,553.23
  4. Step 4: Simplify right side
    621,196.73x = 296,222,117,087.00
  5. Step 5: Solve for x
    x = 296,222,117,087.00/621,196.73
  6. Step 6: Final answer
    x = 476,857.17

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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.