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Finding the Fourth Proportional to 457,194.39, 630,921.59 and 253,244.64

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Solution

The fourth proportional to 457,194.39, 630,921.59 and 253,244.64 is: 349,473.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,194.39 : 630,921.59 = 253,244.64 : x
  2. Step 2: Convert to fraction form
    457,194.39/630,921.59 = 253,244.64/x
  3. Step 3: Cross multiply
    457,194.39x = 630,921.59 × 253,244.64
  4. Step 4: Simplify right side
    457,194.39x = 159,777,512,977.18
  5. Step 5: Solve for x
    x = 159,777,512,977.18/457,194.39
  6. Step 6: Final answer
    x = 349,473.92

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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.