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Finding the Fourth Proportional to 322,751.48, 445,365.84 and 186,758.30

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Solution

The fourth proportional to 322,751.48, 445,365.84 and 186,758.30 is: 257,708.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,751.48 : 445,365.84 = 186,758.30 : x
  2. Step 2: Convert to fraction form
    322,751.48/445,365.84 = 186,758.30/x
  3. Step 3: Cross multiply
    322,751.48x = 445,365.84 × 186,758.30
  4. Step 4: Simplify right side
    322,751.48x = 83,175,767,156.47
  5. Step 5: Solve for x
    x = 83,175,767,156.47/322,751.48
  6. Step 6: Final answer
    x = 257,708.40

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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.