Home / 319,980.78-441,551.25-176,739.57

Finding the Fourth Proportional to 319,980.78, 441,551.25 and 176,739.57

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Solution

The fourth proportional to 319,980.78, 441,551.25 and 176,739.57 is: 243,888.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,980.78 : 441,551.25 = 176,739.57 : x
  2. Step 2: Convert to fraction form
    319,980.78/441,551.25 = 176,739.57/x
  3. Step 3: Cross multiply
    319,980.78x = 441,551.25 × 176,739.57
  4. Step 4: Simplify right side
    319,980.78x = 78,039,578,057.96
  5. Step 5: Solve for x
    x = 78,039,578,057.96/319,980.78
  6. Step 6: Final answer
    x = 243,888.33

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1.5x scale

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.