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Finding the Fourth Proportional to 380,634.39, 570,952.40 and 153,034.92

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Solution

The fourth proportional to 380,634.39, 570,952.40 and 153,034.92 is: 229,552.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,634.39 : 570,952.40 = 153,034.92 : x
  2. Step 2: Convert to fraction form
    380,634.39/570,952.40 = 153,034.92/x
  3. Step 3: Cross multiply
    380,634.39x = 570,952.40 × 153,034.92
  4. Step 4: Simplify right side
    380,634.39x = 87,375,654,092.63
  5. Step 5: Solve for x
    x = 87,375,654,092.63/380,634.39
  6. Step 6: Final answer
    x = 229,552.71

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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.