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Finding the Fourth Proportional to 348,565.40, 521,535.90 and 230,467.40

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Solution

The fourth proportional to 348,565.40, 521,535.90 and 230,467.40 is: 344,833.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,565.40 : 521,535.90 = 230,467.40 : x
  2. Step 2: Convert to fraction form
    348,565.40/521,535.90 = 230,467.40/x
  3. Step 3: Cross multiply
    348,565.40x = 521,535.90 × 230,467.40
  4. Step 4: Simplify right side
    348,565.40x = 120,197,022,879.66
  5. Step 5: Solve for x
    x = 120,197,022,879.66/348,565.40
  6. Step 6: Final answer
    x = 344,833.49

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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.