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Finding the Fourth Proportional to 439,123.68, 605,992.86 and 237,919.68

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Solution

The fourth proportional to 439,123.68, 605,992.86 and 237,919.68 is: 328,330.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,123.68 : 605,992.86 = 237,919.68 : x
  2. Step 2: Convert to fraction form
    439,123.68/605,992.86 = 237,919.68/x
  3. Step 3: Cross multiply
    439,123.68x = 605,992.86 × 237,919.68
  4. Step 4: Simplify right side
    439,123.68x = 144,177,627,333.49
  5. Step 5: Solve for x
    x = 144,177,627,333.49/439,123.68
  6. Step 6: Final answer
    x = 328,330.34

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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.