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Finding the Fourth Proportional to 339,411.36, 468,074.68 and 230,678.56

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Solution

The fourth proportional to 339,411.36, 468,074.68 and 230,678.56 is: 318,123.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,411.36 : 468,074.68 = 230,678.56 : x
  2. Step 2: Convert to fraction form
    339,411.36/468,074.68 = 230,678.56/x
  3. Step 3: Cross multiply
    339,411.36x = 468,074.68 × 230,678.56
  4. Step 4: Simplify right side
    339,411.36x = 107,974,793,154.86
  5. Step 5: Solve for x
    x = 107,974,793,154.86/339,411.36
  6. Step 6: Final answer
    x = 318,123.69

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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.