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Finding the Fourth Proportional to 469,090.63, 647,346.19 and 254,230.64

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Solution

The fourth proportional to 469,090.63, 647,346.19 and 254,230.64 is: 350,838.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,090.63 : 647,346.19 = 254,230.64 : x
  2. Step 2: Convert to fraction form
    469,090.63/647,346.19 = 254,230.64/x
  3. Step 3: Cross multiply
    469,090.63x = 647,346.19 × 254,230.64
  4. Step 4: Simplify right side
    469,090.63x = 164,575,236,185.26
  5. Step 5: Solve for x
    x = 164,575,236,185.26/469,090.63
  6. Step 6: Final answer
    x = 350,838.89

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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.