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Finding the Fourth Proportional to 469,774.76, 648,290.90 and 254,914.83

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Solution

The fourth proportional to 469,774.76, 648,290.90 and 254,914.83 is: 351,783.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,774.76 : 648,290.90 = 254,914.83 : x
  2. Step 2: Convert to fraction form
    469,774.76/648,290.90 = 254,914.83/x
  3. Step 3: Cross multiply
    469,774.76x = 648,290.90 × 254,914.83
  4. Step 4: Simplify right side
    469,774.76x = 165,258,965,201.33
  5. Step 5: Solve for x
    x = 165,258,965,201.33/469,774.76
  6. Step 6: Final answer
    x = 351,783.41

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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.