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Finding the Fourth Proportional to 985,728.82, 1,478,594.85 and 237,774.82

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Solution

The fourth proportional to 985,728.82, 1,478,594.85 and 237,774.82 is: 356,662.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,728.82 : 1,478,594.85 = 237,774.82 : x
  2. Step 2: Convert to fraction form
    985,728.82/1,478,594.85 = 237,774.82/x
  3. Step 3: Cross multiply
    985,728.82x = 1,478,594.85 × 237,774.82
  4. Step 4: Simplify right side
    985,728.82x = 351,572,624,311.68
  5. Step 5: Solve for x
    x = 351,572,624,311.68/985,728.82
  6. Step 6: Final answer
    x = 356,662.62

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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.