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Finding the Fourth Proportional to 468,901.80, 647,083.62 and 254,047.20

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Solution

The fourth proportional to 468,901.80, 647,083.62 and 254,047.20 is: 350,584.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,901.80 : 647,083.62 = 254,047.20 : x
  2. Step 2: Convert to fraction form
    468,901.80/647,083.62 = 254,047.20/x
  3. Step 3: Cross multiply
    468,901.80x = 647,083.62 × 254,047.20
  4. Step 4: Simplify right side
    468,901.80x = 164,389,781,826.86
  5. Step 5: Solve for x
    x = 164,389,781,826.86/468,901.80
  6. Step 6: Final answer
    x = 350,584.67

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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.