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Finding the Fourth Proportional to 555,188.64, 832,658.43 and 255,381.30

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Solution

The fourth proportional to 555,188.64, 832,658.43 and 255,381.30 is: 383,014.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,188.64 : 832,658.43 = 255,381.30 : x
  2. Step 2: Convert to fraction form
    555,188.64/832,658.43 = 255,381.30/x
  3. Step 3: Cross multiply
    555,188.64x = 832,658.43 × 255,381.30
  4. Step 4: Simplify right side
    555,188.64x = 212,645,392,309.36
  5. Step 5: Solve for x
    x = 212,645,392,309.36/555,188.64
  6. Step 6: Final answer
    x = 383,014.67

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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.