Home / 543,566.94-815,580.78-290,781.24

Finding the Fourth Proportional to 543,566.94, 815,580.78 and 290,781.24

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Solution

The fourth proportional to 543,566.94, 815,580.78 and 290,781.24 is: 436,295.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,566.94 : 815,580.78 = 290,781.24 : x
  2. Step 2: Convert to fraction form
    543,566.94/815,580.78 = 290,781.24/x
  3. Step 3: Cross multiply
    543,566.94x = 815,580.78 × 290,781.24
  4. Step 4: Simplify right side
    543,566.94x = 237,155,590,528.57
  5. Step 5: Solve for x
    x = 237,155,590,528.57/543,566.94
  6. Step 6: Final answer
    x = 436,295.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.