Home / 403,618.50-556,882.68-280,973.46

Finding the Fourth Proportional to 403,618.50, 556,882.68 and 280,973.46

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Solution

The fourth proportional to 403,618.50, 556,882.68 and 280,973.46 is: 387,666.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,618.50 : 556,882.68 = 280,973.46 : x
  2. Step 2: Convert to fraction form
    403,618.50/556,882.68 = 280,973.46/x
  3. Step 3: Cross multiply
    403,618.50x = 556,882.68 × 280,973.46
  4. Step 4: Simplify right side
    403,618.50x = 156,469,253,413.67
  5. Step 5: Solve for x
    x = 156,469,253,413.67/403,618.50
  6. Step 6: Final answer
    x = 387,666.21

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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.