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Finding the Fourth Proportional to 579,040.08, 868,735.71 and 279,464.82

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Solution

The fourth proportional to 579,040.08, 868,735.71 and 279,464.82 is: 419,281.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,040.08 : 868,735.71 = 279,464.82 : x
  2. Step 2: Convert to fraction form
    579,040.08/868,735.71 = 279,464.82/x
  3. Step 3: Cross multiply
    579,040.08x = 868,735.71 × 279,464.82
  4. Step 4: Simplify right side
    579,040.08x = 242,781,068,822.72
  5. Step 5: Solve for x
    x = 242,781,068,822.72/579,040.08
  6. Step 6: Final answer
    x = 419,281.98

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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.