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Finding the Fourth Proportional to 518,653.44, 778,288.32 and 223,165.44

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Solution

The fourth proportional to 518,653.44, 778,288.32 and 223,165.44 is: 334,880.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,653.44 : 778,288.32 = 223,165.44 : x
  2. Step 2: Convert to fraction form
    518,653.44/778,288.32 = 223,165.44/x
  3. Step 3: Cross multiply
    518,653.44x = 778,288.32 × 223,165.44
  4. Step 4: Simplify right side
    518,653.44x = 173,687,055,379.66
  5. Step 5: Solve for x
    x = 173,687,055,379.66/518,653.44
  6. Step 6: Final answer
    x = 334,880.75

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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.