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Finding the Fourth Proportional to 300,937.67, 415,336.58 and 186,253.21

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Solution

The fourth proportional to 300,937.67, 415,336.58 and 186,253.21 is: 257,055.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,937.67 : 415,336.58 = 186,253.21 : x
  2. Step 2: Convert to fraction form
    300,937.67/415,336.58 = 186,253.21/x
  3. Step 3: Cross multiply
    300,937.67x = 415,336.58 × 186,253.21
  4. Step 4: Simplify right side
    300,937.67x = 77,357,771,255.42
  5. Step 5: Solve for x
    x = 77,357,771,255.42/300,937.67
  6. Step 6: Final answer
    x = 257,055.79

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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.