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Finding the Fourth Proportional to 300,783.25, 415,080.89 and 179,929.63

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Solution

The fourth proportional to 300,783.25, 415,080.89 and 179,929.63 is: 248,302.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,783.25 : 415,080.89 = 179,929.63 : x
  2. Step 2: Convert to fraction form
    300,783.25/415,080.89 = 179,929.63/x
  3. Step 3: Cross multiply
    300,783.25x = 415,080.89 × 179,929.63
  4. Step 4: Simplify right side
    300,783.25x = 74,685,350,957.77
  5. Step 5: Solve for x
    x = 74,685,350,957.77/300,783.25
  6. Step 6: Final answer
    x = 248,302.89

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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.