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Finding the Fourth Proportional to 378,677.48, 568,425.66 and 336,825.58

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Solution

The fourth proportional to 378,677.48, 568,425.66 and 336,825.58 is: 505,602.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,677.48 : 568,425.66 = 336,825.58 : x
  2. Step 2: Convert to fraction form
    378,677.48/568,425.66 = 336,825.58/x
  3. Step 3: Cross multiply
    378,677.48x = 568,425.66 × 336,825.58
  4. Step 4: Simplify right side
    378,677.48x = 191,460,302,616.38
  5. Step 5: Solve for x
    x = 191,460,302,616.38/378,677.48
  6. Step 6: Final answer
    x = 505,602.56

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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.