Home / 641,723.17-885,627.15-366,087.09

Finding the Fourth Proportional to 641,723.17, 885,627.15 and 366,087.09

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Solution

The fourth proportional to 641,723.17, 885,627.15 and 366,087.09 is: 505,228.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,723.17 : 885,627.15 = 366,087.09 : x
  2. Step 2: Convert to fraction form
    641,723.17/885,627.15 = 366,087.09/x
  3. Step 3: Cross multiply
    641,723.17x = 885,627.15 × 366,087.09
  4. Step 4: Simplify right side
    641,723.17x = 324,216,666,168.49
  5. Step 5: Solve for x
    x = 324,216,666,168.49/641,723.17
  6. Step 6: Final answer
    x = 505,228.24

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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.