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Finding the Fourth Proportional to 519,230.40, 778,950.90 and 294,698.40

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Solution

The fourth proportional to 519,230.40, 778,950.90 and 294,698.40 is: 442,107.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,230.40 : 778,950.90 = 294,698.40 : x
  2. Step 2: Convert to fraction form
    519,230.40/778,950.90 = 294,698.40/x
  3. Step 3: Cross multiply
    519,230.40x = 778,950.90 × 294,698.40
  4. Step 4: Simplify right side
    519,230.40x = 229,555,583,908.56
  5. Step 5: Solve for x
    x = 229,555,583,908.56/519,230.40
  6. Step 6: Final answer
    x = 442,107.36

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1.5x scale

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.