Home / 678,083.16-935,883.66-448,645.08

Finding the Fourth Proportional to 678,083.16, 935,883.66 and 448,645.08

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Solution

The fourth proportional to 678,083.16, 935,883.66 and 448,645.08 is: 619,215.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,083.16 : 935,883.66 = 448,645.08 : x
  2. Step 2: Convert to fraction form
    678,083.16/935,883.66 = 448,645.08/x
  3. Step 3: Cross multiply
    678,083.16x = 935,883.66 × 448,645.08
  4. Step 4: Simplify right side
    678,083.16x = 419,879,599,511.39
  5. Step 5: Solve for x
    x = 419,879,599,511.39/678,083.16
  6. Step 6: Final answer
    x = 619,215.49

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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.