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Finding the Fourth Proportional to 469,130.42, 647,397.42 and 254,268.20

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Solution

The fourth proportional to 469,130.42, 647,397.42 and 254,268.20 is: 350,888.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,130.42 : 647,397.42 = 254,268.20 : x
  2. Step 2: Convert to fraction form
    469,130.42/647,397.42 = 254,268.20/x
  3. Step 3: Cross multiply
    469,130.42x = 647,397.42 × 254,268.20
  4. Step 4: Simplify right side
    469,130.42x = 164,612,576,668.04
  5. Step 5: Solve for x
    x = 164,612,576,668.04/469,130.42
  6. Step 6: Final answer
    x = 350,888.73

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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.