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Finding the Fourth Proportional to 469,820.54, 648,352.76 and 254,960.60

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Solution

The fourth proportional to 469,820.54, 648,352.76 and 254,960.60 is: 351,845.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,820.54 : 648,352.76 = 254,960.60 : x
  2. Step 2: Convert to fraction form
    469,820.54/648,352.76 = 254,960.60/x
  3. Step 3: Cross multiply
    469,820.54x = 648,352.76 × 254,960.60
  4. Step 4: Simplify right side
    469,820.54x = 165,304,404,184.69
  5. Step 5: Solve for x
    x = 165,304,404,184.69/469,820.54
  6. Step 6: Final answer
    x = 351,845.85

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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.