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Finding the Fourth Proportional to 442,041.98, 663,067.61 and 353,856.07

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Solution

The fourth proportional to 442,041.98, 663,067.61 and 353,856.07 is: 530,787.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,041.98 : 663,067.61 = 353,856.07 : x
  2. Step 2: Convert to fraction form
    442,041.98/663,067.61 = 353,856.07/x
  3. Step 3: Cross multiply
    442,041.98x = 663,067.61 × 353,856.07
  4. Step 4: Simplify right side
    442,041.98x = 234,630,496,642.92
  5. Step 5: Solve for x
    x = 234,630,496,642.92/442,041.98
  6. Step 6: Final answer
    x = 530,787.81

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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.