Home / 719,185.86-1,078,498.31-269,661.78

Finding the Fourth Proportional to 719,185.86, 1,078,498.31 and 269,661.78

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Solution

The fourth proportional to 719,185.86, 1,078,498.31 and 269,661.78 is: 404,387.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,185.86 : 1,078,498.31 = 269,661.78 : x
  2. Step 2: Convert to fraction form
    719,185.86/1,078,498.31 = 269,661.78/x
  3. Step 3: Cross multiply
    719,185.86x = 1,078,498.31 × 269,661.78
  4. Step 4: Simplify right side
    719,185.86x = 290,829,772,653.28
  5. Step 5: Solve for x
    x = 290,829,772,653.28/719,185.86
  6. Step 6: Final answer
    x = 404,387.50

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1.5x scale

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.