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Finding the Fourth Proportional to 468,900.21, 647,082.93 and 254,040.28

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Solution

The fourth proportional to 468,900.21, 647,082.93 and 254,040.28 is: 350,575.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,900.21 : 647,082.93 = 254,040.28 : x
  2. Step 2: Convert to fraction form
    468,900.21/647,082.93 = 254,040.28/x
  3. Step 3: Cross multiply
    468,900.21x = 647,082.93 × 254,040.28
  4. Step 4: Simplify right side
    468,900.21x = 164,385,128,720.42
  5. Step 5: Solve for x
    x = 164,385,128,720.42/468,900.21
  6. Step 6: Final answer
    x = 350,575.93

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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.