Home / 377,619.66-521,118.63-207,855

Finding the Fourth Proportional to 377,619.66, 521,118.63 and 207,855

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Solution

The fourth proportional to 377,619.66, 521,118.63 and 207,855 is: 286,841.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,619.66 : 521,118.63 = 207,855 : x
  2. Step 2: Convert to fraction form
    377,619.66/521,118.63 = 207,855/x
  3. Step 3: Cross multiply
    377,619.66x = 521,118.63 × 207,855
  4. Step 4: Simplify right side
    377,619.66x = 108,317,112,838.65
  5. Step 5: Solve for x
    x = 108,317,112,838.65/377,619.66
  6. Step 6: Final answer
    x = 286,841.83

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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.