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Finding the Fourth Proportional to 469,858.38, 648,409.41 and 255,000.30

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Solution

The fourth proportional to 469,858.38, 648,409.41 and 255,000.30 is: 351,903.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,858.38 : 648,409.41 = 255,000.30 : x
  2. Step 2: Convert to fraction form
    469,858.38/648,409.41 = 255,000.30/x
  3. Step 3: Cross multiply
    469,858.38x = 648,409.41 × 255,000.30
  4. Step 4: Simplify right side
    469,858.38x = 165,344,594,072.82
  5. Step 5: Solve for x
    x = 165,344,594,072.82/469,858.38
  6. Step 6: Final answer
    x = 351,903.04

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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.