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Finding the Fourth Proportional to 358,762.32, 494,906.76 and 231,235.92

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Solution

The fourth proportional to 358,762.32, 494,906.76 and 231,235.92 is: 318,986.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,762.32 : 494,906.76 = 231,235.92 : x
  2. Step 2: Convert to fraction form
    358,762.32/494,906.76 = 231,235.92/x
  3. Step 3: Cross multiply
    358,762.32x = 494,906.76 × 231,235.92
  4. Step 4: Simplify right side
    358,762.32x = 114,440,219,962.82
  5. Step 5: Solve for x
    x = 114,440,219,962.82/358,762.32
  6. Step 6: Final answer
    x = 318,986.17

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1.5x scale

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.