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Finding the Fourth Proportional to 317,238.89, 437,778.95 and 188,253.95

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Solution

The fourth proportional to 317,238.89, 437,778.95 and 188,253.95 is: 259,784.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,238.89 : 437,778.95 = 188,253.95 : x
  2. Step 2: Convert to fraction form
    317,238.89/437,778.95 = 188,253.95/x
  3. Step 3: Cross multiply
    317,238.89x = 437,778.95 × 188,253.95
  4. Step 4: Simplify right side
    317,238.89x = 82,413,613,434.19
  5. Step 5: Solve for x
    x = 82,413,613,434.19/317,238.89
  6. Step 6: Final answer
    x = 259,784.08

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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.