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Finding the Fourth Proportional to 469,915.46, 648,484.58 and 255,055.52

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Solution

The fourth proportional to 469,915.46, 648,484.58 and 255,055.52 is: 351,977.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,915.46 : 648,484.58 = 255,055.52 : x
  2. Step 2: Convert to fraction form
    469,915.46/648,484.58 = 255,055.52/x
  3. Step 3: Cross multiply
    469,915.46x = 648,484.58 × 255,055.52
  4. Step 4: Simplify right side
    469,915.46x = 165,399,571,763.88
  5. Step 5: Solve for x
    x = 165,399,571,763.88/469,915.46
  6. Step 6: Final answer
    x = 351,977.29

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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.