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Finding the Fourth Proportional to 408,535.15, 563,794.55 and 247,298.98

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Solution

The fourth proportional to 408,535.15, 563,794.55 and 247,298.98 is: 341,282.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,535.15 : 563,794.55 = 247,298.98 : x
  2. Step 2: Convert to fraction form
    408,535.15/563,794.55 = 247,298.98/x
  3. Step 3: Cross multiply
    408,535.15x = 563,794.55 × 247,298.98
  4. Step 4: Simplify right side
    408,535.15x = 139,425,817,144.56
  5. Step 5: Solve for x
    x = 139,425,817,144.56/408,535.15
  6. Step 6: Final answer
    x = 341,282.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.